YES We show the termination of the TRS R: app(not(),app(not(),x)) -> x app(not(),app(app(or(),x),y)) -> app(app(and(),app(not(),x)),app(not(),y)) app(not(),app(app(and(),x),y)) -> app(app(or(),app(not(),x)),app(not(),y)) app(app(and(),x),app(app(or(),y),z)) -> app(app(or(),app(app(and(),x),y)),app(app(and(),x),z)) app(app(and(),app(app(or(),y),z)),x) -> app(app(or(),app(app(and(),x),y)),app(app(and(),x),z)) app(app(map(),f),nil()) -> nil() app(app(map(),f),app(app(cons(),x),xs)) -> app(app(cons(),app(f,x)),app(app(map(),f),xs)) app(app(filter(),f),nil()) -> nil() app(app(filter(),f),app(app(cons(),x),xs)) -> app(app(app(app(filter2(),app(f,x)),f),x),xs) app(app(app(app(filter2(),true()),f),x),xs) -> app(app(cons(),x),app(app(filter(),f),xs)) app(app(app(app(filter2(),false()),f),x),xs) -> app(app(filter(),f),xs) Instead we prove termination of the uncurried system: app(and_0(),y) -> and_1(y) app(and_1(x1),y) -> and_2(x1,y) app(cons_0(),y) -> cons_1(y) app(cons_1(x1),y) -> cons_2(x1,y) app(filter_0(),y) -> filter_1(y) app(filter_1(x1),y) -> filter_2(x1,y) app(filter2_0(),y) -> filter2_1(y) app(filter2_1(x1),y) -> filter2_2(x1,y) app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) app(map_0(),y) -> map_1(y) app(map_1(x1),y) -> map_2(x1,y) app(not_0(),y) -> not_1(y) app(or_0(),y) -> or_1(y) app(or_1(x1),y) -> or_2(x1,y) not_1(not_1(x)) -> x not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) map_2(f,nil_0()) -> nil_0() map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) filter_2(f,nil_0()) -> nil_0() filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: app#(and_1(x1),y) -> and_2#(x1,y) p2: app#(filter_1(x1),y) -> filter_2#(x1,y) p3: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p4: app#(map_1(x1),y) -> map_2#(x1,y) p5: app#(not_0(),y) -> not_1#(y) p6: not_1#(or_2(x,y)) -> and_2#(not_1(x),not_1(y)) p7: not_1#(or_2(x,y)) -> not_1#(x) p8: not_1#(or_2(x,y)) -> not_1#(y) p9: not_1#(and_2(x,y)) -> not_1#(x) p10: not_1#(and_2(x,y)) -> not_1#(y) p11: and_2#(x,or_2(y,z)) -> and_2#(x,y) p12: and_2#(x,or_2(y,z)) -> and_2#(x,z) p13: and_2#(or_2(y,z),x) -> and_2#(x,y) p14: and_2#(or_2(y,z),x) -> and_2#(x,z) p15: map_2#(f,cons_2(x,xs)) -> app#(f,x) p16: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p17: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p18: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p19: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) p20: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p2, p3, p4, p15, p16, p17, p18, p19, p20} {p7, p8, p9, p10} {p11, p12, p13, p14} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: map_2#(f,cons_2(x,xs)) -> app#(f,x) p2: app#(map_1(x1),y) -> map_2#(x1,y) p3: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p4: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p5: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p6: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p7: app#(filter_1(x1),y) -> filter_2#(x1,y) p8: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p9: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r21, r23 Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: map_2#_A(x1,x2) = max{1, x1 - 24, x2 - 25} cons_2_A(x1,x2) = max{24, x1 + 10, x2} app#_A(x1,x2) = max{1, x1 - 34, x2 - 15} map_1_A(x1) = x1 + 10 filter2_3_A(x1,x2,x3) = max{x1 + 12, x2 + 17, x3 + 33} filter2_4#_A(x1,x2,x3,x4) = max{1, x2 - 34, x3 - 15, x4 - 25} false_0_A = 30 filter_2#_A(x1,x2) = max{1, x1 - 34, x2 - 25} filter_1_A(x1) = max{10, x1 + 1} app_A(x1,x2) = max{42, x1 - 18, x2 + 1} true_0_A = 42 map_2_A(x1,x2) = max{2, x1 - 8, x2 + 1} nil_0_A = 3 filter_2_A(x1,x2) = x2 map_2#!_A(x1,x2) = max{0, x1 - 4} cons_2!_A(x1,x2) = x2 + 17 app#!_A(x1,x2) = max{0, x1 - 13} map_1!_A(x1) = max{0, x1 - 4} filter2_3!_A(x1,x2,x3) = max{x1 - 29, x3 + 3} filter2_4#!_A(x1,x2,x3,x4) = max{19, x2 + 3} false_0!_A = 20 filter_2#!_A(x1,x2) = max{19, x1 + 3} filter_1!_A(x1) = max{25, x1 + 18} app!_A(x1,x2) = max{x1 - 11, x2 + 26} true_0!_A = 1 map_2!_A(x1,x2) = max{2, x2 - 4} nil_0!_A = 1 filter_2!_A(x1,x2) = x2 + 17 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: map_2#_A(x1,x2) = 1 cons_2_A(x1,x2) = x1 + 1 app#_A(x1,x2) = 1 map_1_A(x1) = max{1, x1 - 90} filter2_3_A(x1,x2,x3) = max{1, x1 - 90, x2 - 90, x3 - 90} filter2_4#_A(x1,x2,x3,x4) = 1 false_0_A = 87 filter_2#_A(x1,x2) = 1 filter_1_A(x1) = max{0, x1 - 90} app_A(x1,x2) = 80 true_0_A = 87 map_2_A(x1,x2) = max{81, x1 - 90, x2 - 2} nil_0_A = 0 filter_2_A(x1,x2) = 1 map_2#!_A(x1,x2) = max{2, x1 + 1} cons_2!_A(x1,x2) = max{86, x2 + 1} app#!_A(x1,x2) = 0 map_1!_A(x1) = x1 + 83 filter2_3!_A(x1,x2,x3) = max{6, x1 - 24, x2 + 1, x3 - 1} filter2_4#!_A(x1,x2,x3,x4) = 0 false_0!_A = 1 filter_2#!_A(x1,x2) = 0 filter_1!_A(x1) = max{2, x1 - 1} app!_A(x1,x2) = max{x1 - 23, x2 + 84} true_0!_A = 87 map_2!_A(x1,x2) = max{87, x1 - 89, x2 + 82} nil_0!_A = 88 filter_2!_A(x1,x2) = 80 partial status: pi(map_2#) = [1] pi(cons_2) = [1, 2] pi(app#) = [1] pi(map_1) = [1] pi(filter2_3) = [1, 2, 3] pi(filter2_4#) = [2] pi(false_0) = [] pi(filter_2#) = [1] pi(filter_1) = [1] pi(app) = [1, 2] pi(true_0) = [] pi(map_2) = [1, 2] pi(nil_0) = [] pi(filter_2) = [2] The following rules are removed: p1, p2, p4, p6, p7 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p2: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p3: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p4: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1} {p2, p3, p4} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of (no rules) Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: map_2#_A(x1,x2) = 0 cons_2_A(x1,x2) = max{3, x1 - 13, x2 - 4} map_2#!_A(x1,x2) = max{1, x2 - 7} cons_2!_A(x1,x2) = max{2, x1 - 29, x2 - 6} 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: map_2#_A(x1,x2) = 0 cons_2_A(x1,x2) = max{3, x1 - 35, x2 - 4} map_2#!_A(x1,x2) = max{10, x1 - 1, x2 - 4} cons_2!_A(x1,x2) = max{9, x1 - 49, x2 - 12} partial status: pi(map_2#) = [2] pi(cons_2) = [2] The following rules are removed: p1 Then no dependency pair remains. -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p2: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p3: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r13, r16, r17, r18, r19, r20 Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: filter2_4#_A(x1,x2,x3,x4) = max{62, x2 - 1, x3 - 1, x4 + 53} false_0_A = 46 filter_2#_A(x1,x2) = max{62, x1 - 1, x2 + 53} cons_2_A(x1,x2) = max{8, x1 - 54, x2 + 7} app_A(x1,x2) = max{46, x1 - 48, x2 + 6} true_0_A = 46 not_0_A = 125 not_1_A(x1) = max{46, x1} or_2_A(x1,x2) = max{7, x1 - 38, x2 - 63} and_2_A(x1,x2) = max{37, x1 - 38, x2 - 63} filter2_4#!_A(x1,x2,x3,x4) = 122 false_0!_A = 121 filter_2#!_A(x1,x2) = 122 cons_2!_A(x1,x2) = max{124, x1 + 47, x2 + 85} app!_A(x1,x2) = max{117, x1 - 5, x2 + 46} true_0!_A = 123 not_0!_A = 120 not_1!_A(x1) = max{119, x1 + 45} or_2!_A(x1,x2) = max{117, x1 + 5, x2 - 55} and_2!_A(x1,x2) = max{118, x1 - 8, x2 - 19} 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: filter2_4#_A(x1,x2,x3,x4) = max{1, x2 - 1, x3 - 7, x4 - 1} false_0_A = 0 filter_2#_A(x1,x2) = max{1, x1 - 1, x2 - 2} cons_2_A(x1,x2) = max{x1 - 5, x2 + 2} app_A(x1,x2) = x2 + 4 true_0_A = 18 not_0_A = 0 not_1_A(x1) = max{2, x1 + 1} or_2_A(x1,x2) = max{6, x1 - 8, x2 - 8} and_2_A(x1,x2) = max{7, x1 - 8, x2 - 8} filter2_4#!_A(x1,x2,x3,x4) = max{x3 + 2, x4 + 11} false_0!_A = 2 filter_2#!_A(x1,x2) = x2 + 10 cons_2!_A(x1,x2) = max{18, x1 + 3, x2 + 12} app!_A(x1,x2) = max{29, x1 - 6, x2 + 25} true_0!_A = 35 not_0!_A = 1 not_1!_A(x1) = max{28, x1 - 8} or_2!_A(x1,x2) = 0 and_2!_A(x1,x2) = max{27, x2 - 5} partial status: pi(filter2_4#) = [] pi(false_0) = [] pi(filter_2#) = [] pi(cons_2) = [] pi(app) = [2] pi(true_0) = [] pi(not_0) = [] pi(not_1) = [1] pi(or_2) = [] pi(and_2) = [] The following rules are removed: p1, p2, p3 Then no dependency pair remains. -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: not_1#(and_2(x,y)) -> not_1#(y) p2: not_1#(and_2(x,y)) -> not_1#(x) p3: not_1#(or_2(x,y)) -> not_1#(y) p4: not_1#(or_2(x,y)) -> not_1#(x) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of (no rules) Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: not_1#_A(x1) = 0 and_2_A(x1,x2) = max{8, x1 - 19, x2 - 10} or_2_A(x1,x2) = max{9, x1 - 17, x2 - 17} not_1#!_A(x1) = max{1, x1 - 37} and_2!_A(x1,x2) = max{2, x1 - 12, x2 - 10} or_2!_A(x1,x2) = max{3, x1 - 16, x2 - 36} 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: not_1#_A(x1) = 0 and_2_A(x1,x2) = max{5, x1 - 6, x2 - 6} or_2_A(x1,x2) = max{4, x1 - 6, x2 - 6} not_1#!_A(x1) = max{1, x1 - 78} and_2!_A(x1,x2) = max{26, x1 - 75, x2 - 77} or_2!_A(x1,x2) = max{26, x1 - 77, x2 - 68} partial status: pi(not_1#) = [1] pi(and_2) = [1, 2] pi(or_2) = [1, 2] The following rules are removed: p1, p2, p3, p4 Then no dependency pair remains. -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: and_2#(x,or_2(y,z)) -> and_2#(x,y) p2: and_2#(or_2(y,z),x) -> and_2#(x,z) p3: and_2#(or_2(y,z),x) -> and_2#(x,y) p4: and_2#(x,or_2(y,z)) -> and_2#(x,z) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of (no rules) Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: and_2#_A(x1,x2) = 0 or_2_A(x1,x2) = max{4, x1 - 30, x2 - 30} and_2#!_A(x1,x2) = 0 or_2!_A(x1,x2) = max{3, x1 - 30, x2 - 30} 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: and_2#_A(x1,x2) = 0 or_2_A(x1,x2) = max{9, x1 + 2, x2 + 5} and_2#!_A(x1,x2) = max{1, x1 - 7, x2 - 6} or_2!_A(x1,x2) = max{3, x1 - 37, x2 - 35} partial status: pi(and_2#) = [] pi(or_2) = [2] The following rules are removed: p2, p3 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: and_2#(x,or_2(y,z)) -> and_2#(x,y) p2: and_2#(x,or_2(y,z)) -> and_2#(x,z) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1, p2} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: and_2#(x,or_2(y,z)) -> and_2#(x,y) p2: and_2#(x,or_2(y,z)) -> and_2#(x,z) and R consists of: r1: app(and_0(),y) -> and_1(y) r2: app(and_1(x1),y) -> and_2(x1,y) r3: app(cons_0(),y) -> cons_1(y) r4: app(cons_1(x1),y) -> cons_2(x1,y) r5: app(filter_0(),y) -> filter_1(y) r6: app(filter_1(x1),y) -> filter_2(x1,y) r7: app(filter2_0(),y) -> filter2_1(y) r8: app(filter2_1(x1),y) -> filter2_2(x1,y) r9: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r10: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r11: app(map_0(),y) -> map_1(y) r12: app(map_1(x1),y) -> map_2(x1,y) r13: app(not_0(),y) -> not_1(y) r14: app(or_0(),y) -> or_1(y) r15: app(or_1(x1),y) -> or_2(x1,y) r16: not_1(not_1(x)) -> x r17: not_1(or_2(x,y)) -> and_2(not_1(x),not_1(y)) r18: not_1(and_2(x,y)) -> or_2(not_1(x),not_1(y)) r19: and_2(x,or_2(y,z)) -> or_2(and_2(x,y),and_2(x,z)) r20: and_2(or_2(y,z),x) -> or_2(and_2(x,y),and_2(x,z)) r21: map_2(f,nil_0()) -> nil_0() r22: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r23: filter_2(f,nil_0()) -> nil_0() r24: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r25: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r26: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of (no rules) Take the reduction pair: generalized weighted path order (>=MG, >G) base order 1: trivial reduction triple (T x T, T x T, Φ) base order 2: lexicographic combination of reduction triples: 1. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: and_2#_A(x1,x2) = 0 or_2_A(x1,x2) = max{7, x1 - 9, x2 - 7} and_2#!_A(x1,x2) = max{0, x2 - 48} or_2!_A(x1,x2) = max{4, x1 - 7, x2 - 47} 2. marked-algebra reduction triple (>=A, >=A!, >A!): max/plus interpretation on natural numbers: and_2#_A(x1,x2) = 0 or_2_A(x1,x2) = max{4, x1 - 4, x2 - 4} and_2#!_A(x1,x2) = max{8, x1 - 1, x2 - 32} or_2!_A(x1,x2) = max{7, x1 - 31, x2 - 4} partial status: pi(and_2#) = [2] pi(or_2) = [1, 2] The following rules are removed: p1, p2 Then no dependency pair remains.