Certificate for #25209 ⟨a, b | aa=a, abbba=abb⟩

Completion settings:

[1] aa=a

Axiom: aa=a.

Defines rule #1.

Referenced by [6], [7].

[2] abbba=abb

Axiom: abbba=abb.

Referenced by [4].

[3] ab=c

Axiom: ab=c.

Defines rule #3.

Referenced by [4], [5], [6], [8], [11].

[4] abbba=cb

Simplify [2] abbba=abb.

Reduce RHS:

[3](ab)b
⇒ cb

Referenced by [5].

[5] cbba=cb

Overlap of [4] abbba=cb with [3] ab=c:

abbba ab

Critical pair: cbba=cb.

Referenced by [7], [8], [9], [10].

[6] ac=c

Overlap of [1] aa=a with [3] ab=c:

a a ab

Critical pair: ac=ab.

Reduce RHS:

[3](ab)
⇒ c

Defines rule #2.

Referenced by [9], [10].

[7] cba=cb

Overlap of [5] cbba=cb with [1] aa=a:

cbb a aa

Critical pair: cbba=cba.

Reduce LHS:

[5](cbba)
⇒ cb

Flip LHS and RHS.

Defines rule #4.

[8] cbbc=cbb

Overlap of [5] cbba=cb with [3] ab=c:

cbb a ab

Critical pair: cbbc=cbb.

Referenced by [9].

[9] cbb=cbc

Overlap of [5] cbba=cb with [6] ac=c:

cbb a ac

Critical pair: cbbc=cbc.

Reduce LHS:

[8](cbbc)
⇒ cbb

Defines rule #5.

Referenced by [10], [11].

[10] cbca=cb

Overlap of [6] ac=c with [5] cbba=cb:

a c cbba

Critical pair: acb=cbba.

Reduce LHS:

[6](ac)b
⇒ cb

Reduce RHS:

[9](cbb)a
⇒ cbca

Flip LHS and RHS.

Defines rule #6.

Referenced by [11].

[11] cbcc=cbc

Overlap of [10] cbca=cb with [3] ab=c:

cbc a ab

Critical pair: cbcc=cbb.

Reduce RHS:

[9](cbb)
⇒ cbc

Defines rule #7.