#4282 ⟨
a
,
b
|
abaabbbba
=
bb
⟩
Up:
Monoids with two generators and one relation
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#4281
⟨
a
,
b
|
abaabbbba
=
ba
⟩
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#4283
⟨
a
,
b
|
ababaaaab
=
aa
⟩
Quick links
Properties
Rewriting system
Properties
Presentation has sum-of-sides 11
Infinite non-commutative monoid
Rewriting system
Format:
Pretty
Plain
Word to reduce:
Tips:
Lowercase letters stand for generators.
Spaces are ignored.
Numbers repeat the previous letter, e.g.
b90
.
Reduction strategy:
Leftmost
Rightmost
Path to normal form:
1
1
Reduction order:
Left-to-right shortlex with
b
<
a
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
ab
a
2
b
4
a
⇒
b
2
[1]
2.
ab
a
2
b
6
⇒
b
3
a
2
b
4
a
[2]
# ab:abaabbbba=bb ba abaabbbba=bb abaabbbbbb=bbbaabbbba