Step
*
of Lemma
ring_triv
∀[r:Rng]. ∀[a:|r|]. (a = 0 ∈ |r|) supposing 1 = 0 ∈ |r|
BY
{ ((RepD) THENA Auto) }
1
1. r : Rng
2. 1 = 0 ∈ |r|
3. a : |r|
⊢ a = 0 ∈ |r|
Latex:
Latex:
\mforall{}[r:Rng]. \mforall{}[a:|r|]. (a = 0) supposing 1 = 0
By
Latex:
((RepD) THENA Auto)
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