#1 ⟨
a
,
b
|
aa
=1⟩
Up:
Monoids with two generators and one relation
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#2
⟨
a
,
b
|
ab
=1⟩
Properties
Presentation has sum-of-sides 2
Isomorphic to ℤ
2
∗ ℕ
Infinite non-commutative monoid
Complete 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
a
<
b
a
2
⇒ 1
# ab:aa=1 ab aa=1
Right Cayley graph (truncated)
Left Cayley graph (truncated)