YES (ignored inputs)COMMENT the following rules are removed from the original TRS * ( + ( y , x ) , z ) -> + ( * ( x , z ) , * ( y , z ) ) Rewrite Rules: [ *(+(?x,?y),?z) -> +(*(?x,?z),*(?y,?z)), +(?x,?y) -> +(?y,?x) ] Apply Direct Methods... Inner CPs: [ *(+(?y_1,?x_1),?z) = +(*(?x_1,?z),*(?y_1,?z)) ] Outer CPs: [ ] not Overlay, check Termination... unknown/not Terminating unknown Knuth & Bendix Left-Linear, not Right-Linear unknown Development Closed unknown Weakly-Non-Overlapping & Non-Collapsing & Shallow inner CP cond (upside-parallel) innter CP Cond (outside) unknown Upside-Parallel-Closed/Outside-Closed (inner) Parallel CPs: [ *(+(?y_2,?x_2),?z) = +(*(?x_2,?z),*(?y_2,?z)) {?x_2,?y_2} ] unknown Toyama (Parallel CPs) Simultaneous CPs: [ *(+(?y,?x),?z) = +(*(?x,?z),*(?y,?z)), +(*(?x,?z_2),*(?y,?z_2)) = *(+(?y,?x),?z_2) ] Okui (Simultaneous CPs) Direct Methods: CR Combined result: CR /tmp/file1wdPtG.trs: Success(CR) (0 msec.)