#5918 ⟨a, b | abbaab=ababa⟩
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- Properties
- Rewriting system
- Presentation has sum-of-sides 11
- Infinite non-cancellative non-commutative monoid
- Not left cancellative, because left multiplication by a is not injective:
-
a ⋅ b2a2b = a(ba)2 and a ⋅ (ba)2 = a(ba)2, however b2a2b ≠ (ba)2
- Enveloping group: ⟨a, b | aaabb⟩
- Auxiliary generators:
- c = ababa
- Reduction order:
- Left-to-right recursive path with deg(b) = deg(c) = 0, b < c; deg(a) = 1
- Certificate: derivations of all rewriting rules from the defining relations.
# ab:abbaab=ababa bc/a ababa=c magic:0
cccb=cbcc
cba=abc
ccab=abcc
cbcab=cbbac
cccaccb=cabcccc
cbcca=abccc
ccccca=cccacc
cbcccca=abccccc
abcab=abbac
abccaccb=ababcccc
abcccca=abccacc
caba=abbac
cabbac=abcca
cabcca=abbaccc
cbbaab=ababc
cbbaca=abcbbac
cbbacbbac=abccca
cbbaccca=abcbbaccc
cccaa=abccbbac
cccacab=abbacccc
cccacca=abccbbaccc
cccacccca=abccbbaccccc
ababa=c
ababcca=ccc
abbaab=c
abbaca=ababbac
abbaccca=ababbaccc
abccaa=abbacbbac
abccacab=cccc
abccacca=abbacbbaccc
abccacccca=abbacbbaccccc
ababbacbbac=ccca