Step
*
1
1
of Lemma
massoc_inversion
1. g : IAbMonoid@i'
2. a : |g|@i
3. b : |g|@i
4. a ~ b@i
5. Refl(|g|;x,y.x ~ y)
6. ∀a,b:|g|. ((a ~ b)
⇒ (b ~ a))
7. Trans(|g|;x,y.x ~ y)
⊢ b ~ a
BY
{ ((HypBackchain) THEN Auto) }
Latex:
Latex:
1. g : IAbMonoid@i'
2. a : |g|@i
3. b : |g|@i
4. a \msim{} b@i
5. Refl(|g|;x,y.x \msim{} y)
6. \mforall{}a,b:|g|. ((a \msim{} b) {}\mRightarrow{} (b \msim{} a))
7. Trans(|g|;x,y.x \msim{} y)
\mvdash{} b \msim{} a
By
Latex:
((HypBackchain) THEN Auto)
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