Certificate for #331 ⟨a, b | abababba=1⟩

Completion settings:

[1] abababba=1

Axiom: abababba=1.

Referenced by [4].

[2] ba=c

Axiom: ba=c.

Defines rule #7.

Referenced by [4], [5], [7], [11], [22].

[3] bca=d

Axiom: bca=d.

Referenced by [6].

[4] accbc=1

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

a bababba ba

Critical pair: acbabba=1.

Reduce LHS:

[2]ac(ba)bba
[2]⇒ accb(ba)
⇒ accbc

Referenced by [5], [6], [8], [9], [10], [12].

[5] cccbc=b

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

b a accbc

Critical pair: b=cccbc.

Flip LHS and RHS.

Referenced by [13], [15].

[6] accd=a

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

acc bc bca

Critical pair: accd=a.

Referenced by [7].

[7] cccd=c

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

b a accd

Critical pair: ba=cccd.

Reduce LHS:

[2](ba)
⇒ c

Flip LHS and RHS.

Referenced by [8], [14].

[8] ccd=1

Overlap of [4] accbc=1 with [7] cccd=c:

accb c cccd

Critical pair: accbc=ccd.

Reduce LHS:

[4](accbc)
⇒ 1

Flip LHS and RHS.

Referenced by [9], [14].

[9] accb=cd

Overlap of [4] accbc=1 with [8] ccd=1:

accb c ccd

Critical pair: accb=cd.

Referenced by [10], [11], [12], [16].

[10] cdc=1

Overlap of [4] accbc=1 with [9] accb=cd:

accbc accb

Critical pair: cdc=1.

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

[11] accc=cda

Overlap of [9] accb=cd with [2] ba=c:

acc b ba

Critical pair: accc=cda.

Referenced by [17].

[12] cd=dc

Overlap of [4] accbc=1 with [10] cdc=1:

accb c cdc

Critical pair: accb=dc.

Reduce LHS:

[9](accb)
⇒ cd

Defines rule #1.

Referenced by [14], [16], [17], [18], [19], [20], [24], [26].

[13] bdc=cccb

Overlap of [5] cccbc=b with [10] cdc=1:

cccb c cdc

Critical pair: cccb=bdc.

Flip LHS and RHS.

Referenced by [20], [24], [25].

[14] dcc=1

Overlap of [10] cdc=1 with [7] cccd=c:

cd c cccd

Critical pair: cdc=ccd.

Reduce LHS:

[12](cd)c
⇒ dcc

Reduce RHS:

[8](ccd)
⇒ 1

Defines rule #2.

Referenced by [15], [18], [19], [23], [25], [26].

[15] cbc=db

Overlap of [14] dcc=1 with [5] cccbc=b:

d cc cccbc

Critical pair: db=cbc.

Flip LHS and RHS.

Referenced by [18], [19], [20], [21].

[16] accb=dc

Simplify [9] accb=cd.

Reduce RHS:

[12](cd)
⇒ dc

Defines rule #8.

Referenced by [18].

[17] accc=dca

Simplify [11] accc=cda.

Reduce RHS:

[12](cd)a
⇒ dca

Defines rule #4.

[18] adcb=1

Overlap of [16] accb=dc with [15] cbc=db:

ac cb cbc

Critical pair: acdb=dcc.

Reduce LHS:

[12]a(cd)b
⇒ adcb

Reduce RHS:

[14](dcc)
⇒ 1

Referenced by [21].

[19] bc=ddcb

Overlap of [14] dcc=1 with [15] cbc=db:

dc c cbc

Critical pair: dcdb=bc.

Reduce LHS:

[12]d(cd)b
⇒ ddcb

Flip LHS and RHS.

Defines rule #5.

Referenced by [26].

[20] dbd=ccccb

Overlap of [15] cbc=db with [12] cd=dc:

cb c cd

Critical pair: cbdc=dbd.

Reduce LHS:

[13]c(bdc)
⇒ ccccb

Flip LHS and RHS.

Referenced by [25].

[21] addb=c

Overlap of [18] adcb=1 with [15] cbc=db:

ad cb cbc

Critical pair: addb=c.

Referenced by [22].

[22] addc=ca

Overlap of [21] addb=c with [2] ba=c:

add b ba

Critical pair: addc=ca.

Referenced by [23].

[23] ad=cac

Overlap of [22] addc=ca with [14] dcc=1:

ad dc dcc

Critical pair: ad=cac.

Defines rule #3.

[24] bddc=cccbd

Overlap of [13] bdc=cccb with [12] cd=dc:

bd c cd

Critical pair: bddc=cccbd.

Referenced by [25], [26].

[25] cbd=cccccccb

Overlap of [20] dbd=ccccb with [24] bddc=cccbd:

d bd bddc

Critical pair: dcccbd=ccccbdc.

Reduce LHS:

[14](dcc)cbd
⇒ cbd

Reduce RHS:

[13]cccc(bdc)
⇒ cccccccb

Referenced by [26].

[26] bd=ccccccb

Overlap of [24] bddc=cccbd with [14] dcc=1:

bd dc dcc

Critical pair: bd=cccbdc.

Reduce RHS:

[25]cc(cbd)c
[19]⇒ ccccccccc(bc)
[12]⇒ cccccccc(cd)dcb
[12]⇒ ccccccc(cd)cdcb
[12]⇒ cccccc(cd)ccdcb
[12]⇒ ccccc(cd)cccdcb
[12]⇒ cccc(cd)ccccdcb
[12]⇒ ccc(cd)cccccdcb
[12]⇒ cc(cd)ccccccdcb
[12]⇒ c(cd)cccccccdcb
[12]⇒ (cd)ccccccccdcb
[14]⇒ (dcc)cccccccdcb
[12]⇒ cccccc(cd)cb
[12]⇒ ccccc(cd)ccb
[12]⇒ cccc(cd)cccb
[12]⇒ ccc(cd)ccccb
[12]⇒ cc(cd)cccccb
[12]⇒ c(cd)ccccccb
[12]⇒ (cd)cccccccb
[14]⇒ (dcc)ccccccb
⇒ ccccccb

Defines rule #6.