NO Non-Confluence Proof

Non-Confluence Proof

by csi

Input

The rewrite relation of the following TRS is considered.

h(a,c) b
c a
b f(b)

Proof

1 Non-Joinable Fork

The system is not confluent due to the following forking derivations.

t0 = h(a,c)
2 h(a,a)
= t1

t0 = h(a,c)
ε b
= t1

The two resulting terms cannot be joined for the following reason:

Tool configuration

csi