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Theorem itopi 41
Description: Insert Top into With. Inverse of etopi 42.
Hypothesis
Ref Expression
itopi.1 𝜑
Assertion
Ref Expression
itopi (𝜑 & ⊤)

Proof of Theorem itopi
StepHypRef Expression
1 itopi.1 . 2 𝜑
2 ax-init 7 . . 3 (~ 𝜑𝜑)
3 ax-top 31 . . 3 (~ 𝜑 ⅋ ⊤)
42, 3ax-iac 32 . 2 (~ 𝜑 ⅋ (𝜑 & ⊤))
51, 4cut1 10 1 (𝜑 & ⊤)
Colors of variables: wff var nilad
Syntax hints:  wtop 29   & wac 30
This theorem was proved from axioms:  ax-ibot 4  ax-ebot 5  ax-cut 6  ax-init 7  ax-top 31  ax-iac 32
This theorem is referenced by: (None)
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