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Step * of Lemma inv_funs_sym

∀[A,B:Type]. ∀[f:A ⟶ B]. ∀[g:B ⟶ A].  InvFuns(B;A;g;f) supposing InvFuns(A;B;f;g)
BY
{ (Auto THEN ParallelLast THEN Auto) }

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Latex:

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


By

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Latex:
(Auto  THEN  ParallelLast  THEN  Auto)

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