Certificate for #71 ⟨a, b | ababba=1⟩

Completion settings:

[1] ababba=1

Axiom: ababba=1.

Referenced by [4].

[2] ba=c

Axiom: ba=c.

Defines rule #5.

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

[3] bca=d

Axiom: bca=d.

Referenced by [6], [15].

[4] acbc=1

Overlap of [1] ababba=1 with [2] ba=c:

a babba ba

Critical pair: acbba=1.

Reduce LHS:

[2]acb(ba)
acbc

Referenced by [5], [6], [8], [9], [11].

[5] ccbc=b

Overlap of [2] ba=c with [4] acbc=1:

b a acbc

Critical pair: b=ccbc.

Flip LHS and RHS.

Referenced by [12].

[6] acd=a

Overlap of [4] acbc=1 with [3] bca=d:

ac bc bca

Critical pair: acd=a.

Referenced by [7].

[7] ccd=c

Overlap of [2] ba=c with [6] acd=a:

b a acd

Critical pair: ba=ccd.

Reduce LHS:

[2](ba)
c

Flip LHS and RHS.

Referenced by [8].

[8] cd=1

Overlap of [4] acbc=1 with [7] ccd=c:

acb c ccd

Critical pair: acbc=cd.

Reduce LHS:

[4](acbc)
⇒ 1

Flip LHS and RHS.

Defines rule #1.

Referenced by [9].

[9] acb=d

Overlap of [4] acbc=1 with [8] cd=1:

acb c cd

Critical pair: acb=d.

Referenced by [10], [11], [13].

[10] bd=ccb

Overlap of [2] ba=c with [9] acb=d:

b a acb

Critical pair: bd=ccb.

Defines rule #3.

[11] dc=1

Overlap of [4] acbc=1 with [9] acb=d:

acbc acb

Critical pair: dc=1.

Defines rule #2.

Referenced by [12], [13], [14], [16], [17].

[12] cbc=db

Overlap of [11] dc=1 with [5] ccbc=b:

d c ccbc

Critical pair: db=cbc.

Flip LHS and RHS.

Referenced by [13], [14].

[13] adb=1

Overlap of [9] acb=d with [12] cbc=db:

a cb cbc

Critical pair: adb=dc.

Reduce RHS:

[11](dc)
⇒ 1

Defines rule #8.

Referenced by [15].

[14] bc=ddb

Overlap of [11] dc=1 with [12] cbc=db:

d c cbc

Critical pair: ddb=bc.

Flip LHS and RHS.

Defines rule #4.

[15] add=ca

Overlap of [13] adb=1 with [3] bca=d:

ad b bca

Critical pair: add=ca.

Defines rule #7.

Referenced by [16].

[16] cac=ad

Overlap of [15] add=ca with [11] dc=1:

ad d dc

Critical pair: ad=cac.

Flip LHS and RHS.

Referenced by [17].

[17] ac=dad

Overlap of [11] dc=1 with [16] cac=ad:

d c cac

Critical pair: dad=ac.

Flip LHS and RHS.

Defines rule #6.