#4586 ⟨
a
,
b
|
aaabbbba
=
bab
⟩
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Monoid enumeration
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#4585
⟨
a
,
b
|
aaabbbba
=
baa
⟩
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#4587
⟨
a
,
b
|
aaabbbba
=
bba
⟩
Contents
Properties
Rewriting system
Properties
Sum of relation sides is 11
Infinite cancellative non-commutative monoid
Element
a
has infinite order
Submonoid of enveloping group: ⟨
a
,
b
|
aaaabbba
-1
b
-1
a
-1
b
⟩
Anti-isomorphic embedding:
φ
(
a
) =
b
,
φ
(
b
) =
a
Rewriting system
Format:
Pretty
Plain
Word:
Enter a word above to compute its normal form. Tips:
Lowercase letters stand for generators.
Spaces are ignored.
Numbers repeat the previous letter, e.g.
b90
.
Strategy:
Leftmost
Rightmost
Result:
1
1
Reduction order:
Left-to-right shortlex with
b
<
a
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
a
3
b
4
a
⇒
bab
[1]
2.
a
3
b
5
ab
⇒
bab
a
2
b
4
a
[2]
# ab:aaabbbba=bab ba - - aaabbbba=bab aaabbbbbab=babaabbbba