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Step * 1 of Lemma church_null_pair_lemma


1. y : Top@i
2. x : Top@i
⊢ church-null() (church-pair() x y) ~ church-false()
BY
{ Try (RW (AddrC [1] (UnfoldsC ``church-null church-pair`` ANDTHENC ReduceC)) 0)⋅ }

1
1. y : Top@i
2. x : Top@i
⊢ church-false() ~ church-false()

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Latex:

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Latex:

1.  y  :  Top@i
2.  x  :  Top@i
\mvdash{}  church-null()  (church-pair()  x  y)  \msim{}  church-false()


By

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Latex:
Try  (RW  (AddrC  [1]  (UnfoldsC  ``church-null  church-pair``  ANDTHENC  ReduceC))  0)\mcdot{}

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