Certificate for #1998 ⟨a, b | aaa=a, bbbb=a

Completion settings:

[1] aaa=a

Axiom: aaa=a.

Referenced by [3].

[2] a=bbbb

Axiom: bbbb=a.

Flip LHS and RHS.

Defines rule #2.

Referenced by [3], [4].

[3] aaa=bbbb

Simplify [1] aaa=a.

Reduce RHS:

[2](a)
bbbb

Referenced by [4].

[4] bbbbbbbbbbbb=bbbb

Overlap of [3] aaa=bbbb with [2] a=bbbb:

aaa a

Critical pair: bbbbaa=bbbb.

Reduce LHS:

[2]bbbb(a)a
[2]bbbbbbbb(a)
bbbbbbbbbbbb

Defines rule #1.