#1663 ⟨a, b, c | aab=ba, bbc=1⟩

Properties

Sum of relation sides is 8
Infinite non-cancellative non-commutative monoid
Element a has infinite order
Not left cancellative, because left multiplication by b is not injective:
- b ⋅ bcb = b and b ⋅ 1 = b, however bcb ≠ 1
Not right cancellative, because right multiplication by bc is not injective:
- bcb ⋅ bc = bc and 1 ⋅ bc = bc, however bcb ≠ 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

Reduction order:
- Right-to-left recursive path with deg(a) = deg(c) = 0, a < c; deg(b) = 1
Certificate: derivations of all rewriting rules from the defining relations.

#	Rule	Proof
1.	ba ⇒ a²b	[1]
2.	b²c ⇒ 1	[2]

# abc:aab=ba,bbc=1 reversed:ac/b - -
ba=aab
bbc=1