#3020 ⟨a, b | aa=a, abba=ab

Quick links

  1. Properties
  2. Rewriting system
  3. Isomorphic instances
  4. Anti-isomorphic instances

Properties

Rewriting system

Format:
Word to reduce:
Tips:
  • Lowercase letters stand for generators.
  • Spaces are ignored.
  • Numbers repeat the previous letter, e.g. b90.
Reduction strategy:
Path to normal form: 1
1
#RuleProof
1. a2 ⇒ a [1]
2. aba ⇒ ab [3]
3. ab2 ⇒ ab [4]
# ab:aa=a,abba=ab ab
aa=a
aba=ab
abb=ab

Isomorphic instances

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

10 total

Σ#PresentationMapping
108863a, b | aa=a, aabba=abφ(a) = a, φ(b) = b
108875a, b | aa=a, ababa=abφ(a) = a, φ(b) = b
109151a, b | aa=a, abba=aabφ(a) = a, φ(b) = b
1124612a, b | aa=a, aaabba=abφ(a) = a, φ(b) = b
1124624a, b | aa=a, aababa=abφ(a) = a, φ(b) = b
1124632a, b | aa=a, aabbaa=abφ(a) = a, φ(b) = b
1124651a, b | aa=a, abaaba=abφ(a) = a, φ(b) = b
1125161a, b | aa=a, aabba=aabφ(a) = a, φ(b) = b
1125185a, b | aa=a, ababa=aabφ(a) = a, φ(b) = b
1125675a, b | aa=a, abba=aaabφ(a) = a, φ(b) = b

Anti-isomorphic instances

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

4 total

Σ#PresentationMapping
108864a, b | aa=a, aabba=baφ(a) = a, φ(b) = b
1124613a, b | aa=a, aaabba=baφ(a) = a, φ(b) = b
1124625a, b | aa=a, aababa=baφ(a) = a, φ(b) = b
1125164a, b | aa=a, aabba=baaφ(a) = a, φ(b) = b