#19527 ⟨a, b | aab=b, aabab=bb⟩

Properties

Sum of relation sides is 11
Infinite non-cancellative non-commutative monoid
Element a has infinite order
Not left cancellative, because left multiplication by b is not injective:
- b ⋅ ab = b² and b ⋅ b = b², however ab ≠ b
Not right cancellative, because right multiplication by b is not injective:
- a² ⋅ b = b and 1 ⋅ b = b, however a² ≠ 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.	a²b ⇒ b	[1]
2.	bab ⇒ b²	[2]

# ab:aab=b,aabab=bb ab - -
aab=b
bab=bb

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

4 total

Σ	#	Presentation	Mapping
11	19575	⟨a, b \| aab=b, baaab=bb⟩	φ(a) = a, φ(b) = b
11	20077	⟨a, b \| aab=b, aabb=bab⟩	φ(a) = a, φ(b) = b
11	20091	⟨a, b \| aab=b, abab=abb⟩	φ(a) = a, φ(b) = b
11	20125	⟨a, b \| aab=b, baab=bab⟩	φ(a) = a, φ(b) = b