Step
*
of Lemma
not_subtype_rel
∀[A,B:Type]. (¬A) ⊆r (¬B) supposing B ⊆r A
BY
{ (Auto THEN All (Unfold `not`) THEN Auto) }
Latex:
Latex:
\mforall{}[A,B:Type]. (\mneg{}A) \msubseteq{}r (\mneg{}B) supposing B \msubseteq{}r A
By
Latex:
(Auto THEN All (Unfold `not`) THEN Auto)
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