Step of Proof: implies_functionality_wrt_iff 9,38

Inference at * 
Iof proof for Lemma implies functionality wrt iff:


  P1,P2,Q1,Q2:. (P1  P2 (Q1  Q2 {(P1  Q1 (P2  Q2)} 
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 by ((((((Unfold `guard` 0) 
CollapseTHEN (GenUnivCD))
CollapseTHEN (HypBackchain))

CoCollapseTHEN ((Auto_aux (first_nat 1:n) ((first_nat 1:n),(first_nat 3:n)) (first_tok :t
C) inil_term))) 
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C.


Definitionst  T, P  Q, P  Q, {T}, P  Q, P  Q, , x:AB(x)
Lemmasiff wf

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