#4514 ⟨
a
,
b
|
aaababaa
=
bbb
⟩
Up:
Monoid enumeration
Prev:
#4513
⟨
a
,
b
|
aaababaa
=
bba
⟩
Next:
#4515
⟨
a
,
b
|
aaababab
=
aaa
⟩
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
|
aaababaab
-1
b
-1
b
-1
⟩
Embedding:
φ
(
a
) =
a
,
φ
(
b
) =
b
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 recursive path with deg(
a
) = 0; deg(
b
) = 1
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
b
3
⇒
a
3
bab
a
2
[1]
2.
a
3
bab
a
2
b
⇒
b
a
3
bab
a
2
[2]
# ab:aaababaa=bbb a/b - - bbb=aaababaa aaababaab=baaababaa