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Step * of Lemma injection-composition

∀[A,B,C:Type]. ∀[f:A ⟶ B]. ∀[g:B ⟶ C].  (Inj(A;C;g o f)) supposing (Inj(B;C;g) and Inj(A;B;f))
BY
{ (Unfold `inject` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[A,B,C:Type].  \mforall{}[f:A  {}\mrightarrow{}  B].  \mforall{}[g:B  {}\mrightarrow{}  C].    (Inj(A;C;g  o  f))  supposing  (Inj(B;C;g)  and  Inj(A;B;f))


By

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Latex:
(Unfold  `inject`  0  THEN  Auto)

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