#5457 ⟨
a
,
b
|
aaaa
=1,
bbbbbb
=1⟩
Up:
Monoid enumeration
Prev:
#5444
⟨
a
,
b
|
aaaa
=1,
abbabb
=1⟩
Next:
#5521
⟨
a
,
b
|
aaab
=1,
bbbbbb
=1⟩
Contents
Properties
Rewriting system
Properties
Sum of relation sides is 10
Isomorphic to ℤ
4
∗ ℤ
6
Infinite non-Abelian group
Element
a
2
ba
has infinite order
Inverses of generators:
a
-1
=
a
3
b
-1
=
b
5
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
a
<
b
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
a
4
⇒ 1
[1]
2.
b
6
⇒ 1
[2]
# ab:aaaa=1,bbbbbb=1 ab - - aaaa=1 bbbbbb=1