Certificate for #2581 ⟨a, b | aaa=1, abba=bb

Completion settings:

[1] aaa=1

Axiom: aaa=1.

Defines rule #1.

Referenced by [3].

[2] abba=bb

Axiom: abba=bb.

Referenced by [3].

[3] abb=bbaa

Overlap of [2] abba=bb with [1] aaa=1:

abb a aaa

Critical pair: abb=bbaa.

Defines rule #2.