Step
*
1
1
1
1
of Lemma
less-iff-le
1. x : ℤ@i
2. y : ℤ@i
3. x < y
4. x1 : ∀[u,v:Base]. (if (1 + x) < (y) then u else v ~ u)
⊢ less_than'(1 + x;y)
BY
{ (UnfoldTopAb 0 THEN RWO "-1" 0 THEN Auto) }
Latex:
Latex:
1. x : \mBbbZ{}@i
2. y : \mBbbZ{}@i
3. x < y
4. x1 : \mforall{}[u,v:Base]. (if (1 + x) < (y) then u else v \msim{} u)
\mvdash{} less\_than'(1 + x;y)
By
Latex:
(UnfoldTopAb 0 THEN RWO "-1" 0 THEN Auto)
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