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Step * of Lemma strong-subtype-equal

∀[A,B:Type].  strong-subtype(A;B) supposing A = B ∈ Type
BY
{ (Auto THEN (HypSubst (-1) 0) THEN Auto THEN BLemma `strong-subtype-self` THEN Auto) }

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Latex:

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Latex:
\mforall{}[A,B:Type].    strong-subtype(A;B)  supposing  A  =  B


By

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Latex:
(Auto  THEN  (HypSubst  (-1)  0)  THEN  Auto  THEN  BLemma  `strong-subtype-self`  THEN  Auto)

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