Certificate for #6759 ⟨a, b | aba=a, bbbb=aa

Completion settings:

[1] aba=a

Axiom: aba=a.

Defines rule #3.

Referenced by [4], [5].

[2] bbbb=aa

Axiom: bbbb=aa.

Defines rule #5.

Referenced by [3], [6].

[3] aab=baa

Overlap of [2] bbbb=aa with [2] bbbb=aa:

b bbb bbbb

Critical pair: baa=aab.

Flip LHS and RHS.

Referenced by [4], [5], [7], [8], [10].

[4] abbaa=baa

Overlap of [1] aba=a with [3] aab=baa:

ab a aab

Critical pair: abbaa=aab.

Reduce RHS:

[3](aab)
baa

Referenced by [7].

[5] baaa=aa

Overlap of [3] aab=baa with [1] aba=a:

a ab aba

Critical pair: aa=baaa.

Flip LHS and RHS.

Referenced by [6], [8], [9].

[6] bbbaa=aaaaa

Overlap of [2] bbbb=aa with [5] baaa=aa:

bbb b baaa

Critical pair: bbbaa=aaaaa.

Referenced by [7].

[7] bbaa=aaaaaa

Overlap of [4] abbaa=baa with [3] aab=baa:

abb aa aab

Critical pair: abbbaa=baab.

Reduce LHS:

[6]a(bbbaa)
aaaaaa

Reduce RHS:

[3]b(aab)
bbaa

Flip LHS and RHS.

Referenced by [8], [9].

[8] aaaaaaaa=aa

Overlap of [3] aab=baa with [7] bbaa=aaaaaa:

aa b bbaa

Critical pair: aaaaaaaa=baabaa.

Reduce RHS:

[3]b(aab)aa
[5]b(baaa)a
[5](baaa)
aa

Defines rule #1.

[9] baa=aaaaaaa

Overlap of [7] bbaa=aaaaaa with [5] baaa=aa:

b baa baaa

Critical pair: baa=aaaaaaa.

Defines rule #2.

Referenced by [10].

[10] aab=aaaaaaa

Simplify [3] aab=baa.

Reduce RHS:

[9](baa)
aaaaaaa

Defines rule #4.