Step
*
of Lemma
le_antisymmetry
∀[x,y:ℤ]. ((x ≤ y)
⇒ (y ≤ x)
⇒ (x = y ∈ ℤ))
BY
{ (Auto THEN (InstLemma `less-trichotomy` [⌜x⌝;⌜y⌝]⋅ THEN Auto) THEN SplitOrHyps THEN Auto) }
1
1. x : ℤ
2. y : ℤ
3. x ≤ y
4. y ≤ x
5. x < y
⊢ x = y ∈ ℤ
2
1. x : ℤ
2. y : ℤ
3. x ≤ y
4. y ≤ x
5. y < x
⊢ x = y ∈ ℤ
Latex:
Latex:
\mforall{}[x,y:\mBbbZ{}]. ((x \mleq{} y) {}\mRightarrow{} (y \mleq{} x) {}\mRightarrow{} (x = y))
By
Latex:
(Auto THEN (InstLemma `less-trichotomy` [\mkleeneopen{}x\mkleeneclose{};\mkleeneopen{}y\mkleeneclose{}]\mcdot{} THEN Auto) THEN SplitOrHyps THEN Auto)
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