Certificate for #869 ⟨a, b | aaaaaaa=bb

Completion settings:

[1] aaaaaaa=bb

Axiom: aaaaaaa=bb.

Defines rule #2.

Referenced by [2].

[2] bba=abb

Overlap of [1] aaaaaaa=bb with [1] aaaaaaa=bb:

a aaaaaa aaaaaaa

Critical pair: abb=bba.

Flip LHS and RHS.

Defines rule #1.