(13steps total) PrintForm Definitions Lemmas LogicSupplement Sections DiscrMathExt Doc
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At: decidable cand 2

1. P : Prop
2. Q : Prop(given P)
3. Dec(P)
  (P  Dec(Q))  Prop


By: Analyze


Generated subgoals:

1   P  Prop
Trivial
2 4. P
  Dec(Q Prop

2 steps

About:
isectmemberpropimplies
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(13steps total) PrintForm Definitions Lemmas LogicSupplement Sections DiscrMathExt Doc