#1284 ⟨a, b | aba=aab, abb=1⟩

Properties

Sum of relation sides is 9
Infinite non-cancellative non-commutative monoid
Element a has infinite order
Not left cancellative, because left multiplication by a is not injective:
- a ⋅ b²a = a and a ⋅ 1 = a, however b²a ≠ 1
Not right cancellative, because right multiplication by b² is not injective:
- b²a ⋅ b² = b² and 1 ⋅ b² = b², however b²a ≠ 1

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

#	Rule	Proof
1.	aba ⇒ a²b	[1]
2.	ab² ⇒ 1	[2]

# ab:aba=aab,abb=1 ab - -
aba=aab
abb=1

The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.

2 total

Σ	#	Presentation	Mapping
11	14208	⟨a, b \| abab=a, aabbbb=1⟩	φ(a) = a, φ(b) = b
11	14216	⟨a, b \| abab=a, ababbb=1⟩	φ(a) = a, φ(b) = b