Certificate for #4691 ⟨a, b | aaab=b, babb=a⟩

Completion settings:

[1] aaab=b

Axiom: aaab=b.

Referenced by [4], [5], [6], [9], [16].

[2] babb=a

Axiom: babb=a.

Referenced by [3], [4], [6], [7], [9], [13], [14].

[3] aabb=baba

Overlap of [2] babb=a with [2] babb=a:

bab b babb

Critical pair: baba=aabb.

Flip LHS and RHS.

Referenced by [5], [10], [11], [12].

[4] aaaa=a

Overlap of [1] aaab=b with [2] babb=a:

aaa b babb

Critical pair: aaaa=babb.

Reduce RHS:

[2](babb)
⇒ a

Referenced by [10], [17].

[5] ababa=bb

Overlap of [1] aaab=b with [3] aabb=baba:

a aab aabb

Critical pair: ababa=bb.

Referenced by [6], [7], [8].

[6] bbaab=aa

Overlap of [5] ababa=bb with [1] aaab=b:

abab a aaab

Critical pair: ababb=bbaab.

Reduce LHS:

[2]a(babb)
⇒ aa

Flip LHS and RHS.

Referenced by [9], [10], [11], [15].

[7] abaa=bbbb

Overlap of [5] ababa=bb with [2] babb=a:

aba ba babb

Critical pair: abaa=bbbb.

Referenced by [10], [12].

[8] abbb=bbba

Overlap of [5] ababa=bb with [5] ababa=bb:

ab aba ababa

Critical pair: abbb=bbba.

Referenced by [13].

[9] baaa=b

Overlap of [2] babb=a with [6] bbaab=aa:

ba bb bbaab

Critical pair: baaa=aaab.

Reduce RHS:

[1](aaab)
⇒ b

Referenced by [12], [15].

[10] bbbbbab=a

Overlap of [3] aabb=baba with [6] bbaab=aa:

aa bb bbaab

Critical pair: aaaa=babaaab.

Reduce LHS:

[4](aaaa)
⇒ a

Reduce RHS:

[7]b(abaa)ab
⇒ bbbbbab

Flip LHS and RHS.

Referenced by [13], [14].

[11] aab=bbbaba

Overlap of [6] bbaab=aa with [3] aabb=baba:

bb aab aabb

Critical pair: bbbaba=aab.

Flip LHS and RHS.

Referenced by [12].

[12] bbbabab=bbbbbaa

Overlap of [3] aabb=baba with [9] baaa=b:

aab b baaa

Critical pair: aabb=babaaaa.

Reduce LHS:

[11](aab)b
⇒ bbbabab

Reduce RHS:

[7]b(abaa)aa
⇒ bbbbbaa

Referenced by [13].

[13] baba=bbbbbaa

Overlap of [2] babb=a with [10] bbbbbab=a:

bab b bbbbbab

Critical pair: baba=abbbbab.

Reduce RHS:

[8](abbb)bab
[12]⇒ (bbbabab)
⇒ bbbbbaa

Referenced by [15].

[14] ab=bbbba

Overlap of [10] bbbbbab=a with [2] babb=a:

bbbb bab babb

Critical pair: bbbba=ab.

Flip LHS and RHS.

Defines rule #3.

Referenced by [15].

[15] aaa=bbbbbbbbb

Overlap of [14] ab=bbbba with [6] bbaab=aa:

a b bbaab

Critical pair: aaa=bbbbabaab.

Reduce RHS:

[13]bbb(baba)ab
[9]⇒ bbbbbbb(baaa)b
⇒ bbbbbbbbb

Defines rule #4.

Referenced by [16], [17].

[16] bbbbbbbbbb=b

Overlap of [1] aaab=b with [15] aaa=bbbbbbbbb:

aaab aaa

Critical pair: bbbbbbbbbb=b.

Defines rule #1.

[17] bbbbbbbbba=a

Overlap of [4] aaaa=a with [15] aaa=bbbbbbbbb:

aaaa aaa

Critical pair: bbbbbbbbba=a.

Defines rule #2.