NO

Problem 1: 


:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Confluence Problem:
(VAR vNonEmpty x)
(REPLACEMENT-MAP
(f 1)
(fSNonEmpty)
(g 1)
)
(RULES
f(f(x)) -> g(x)
)
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::


Problem 1: 

Problem 1: 
Not CS-TRS Procedure:
R is not a CS-TRS

Problem 1: 
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Confluence Problem:
(VAR vNonEmpty x)
(REPLACEMENT-MAP
(f 1)
(fSNonEmpty)
(g 1)
)
(RULES
f(f(x)) -> g(x)
)
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Huet Levy Procedure:
-> Rules:
 f(f(x)) -> g(x)
-> Vars:
 x

-> Rlps:
 (rule: f(f(x)) -> g(x), id: 1, possubterms: f(f(x))->[], f(x)->[1])

-> Unifications:
(R1 unifies with R1 at p: [1], l: f(f(x)), lp: f(x), sig: {x -> f(x')}, l': f(f(x')), r: g(x), r': g(x'))

-> Critical pairs info:
<f(g(x')),g(f(x'))>   =>  Not trivial, Not overlay, Proper, NW0, N1

-> Problem conclusions:
 Left linear, Right linear, Linear
 Not weakly orthogonal, Not almost orthogonal, Not orthogonal
 Not Huet-Levy confluent, Not Newman confluent
 R is a TRS 


Problem 1: 
No Convergence Brute Force Procedure:
-> Rewritings:
s: f(g(x'))
Nodes: [0]
Edges: []
ID: 0 => ('f(g(x'))', D0)
t: g(f(x'))
Nodes: [0]
Edges: []
ID: 0 => ('g(f(x'))', D0)
f(g(x')) ->* no union *<- g(f(x'))
"Not joinable"

The problem is not confluent.