Certificate for #12623 ⟨a, b | baab=ab, bbbb=b⟩

Completion settings:

[1] baab=ab

Axiom: baab=ab.

Defines rule #3.

Referenced by [3], [4], [5], [6], [7].

[2] bbbb=b

Axiom: bbbb=b.

Defines rule #5.

Referenced by [4].

[3] baaab=aab

Overlap of [1] baab=ab with [1] baab=ab:

baa b baab

Critical pair: baaab=abaab.

Reduce RHS:

[1]a(baab)
⇒ aab

Referenced by [6], [7].

[4] bbbab=ab

Overlap of [2] bbbb=b with [1] baab=ab:

bbb b baab

Critical pair: bbbab=baab.

Reduce RHS:

[1](baab)
⇒ ab

Referenced by [5], [6].

[5] bbab=aab

Overlap of [4] bbbab=ab with [1] baab=ab:

bbba b baab

Critical pair: bbbaab=abaab.

Reduce LHS:

[1]bb(baab)
⇒ bbab

Reduce RHS:

[1]a(baab)
⇒ aab

Defines rule #4.

Referenced by [6], [7].

[6] aaab=bab

Overlap of [4] bbbab=ab with [5] bbab=aab:

bbba b bbab

Critical pair: bbbaaab=abbab.

Reduce LHS:

[3]bb(baaab)
[1]⇒ b(baab)
⇒ bab

Reduce RHS:

[5]a(bbab)
⇒ aaab

Flip LHS and RHS.

Defines rule #1.

Referenced by [7].

[7] abab=ab

Overlap of [5] bbab=aab with [5] bbab=aab:

bba b bbab

Critical pair: bbaaab=aabbab.

Reduce LHS:

[3]b(baaab)
[1]⇒ (baab)
⇒ ab

Reduce RHS:

[5]aa(bbab)
[6]⇒ a(aaab)
⇒ abab

Flip LHS and RHS.

Defines rule #2.