Nuprl Lemma : forsome_wf
∀[A:Type]. ∀[B:A ─→ ℙ]. (∃a.B[a] ∈ ℙ)
Proof
Definitions occuring in Statement :
forsome: ∃x.P[x],
uall: ∀[x:A]. B[x],
prop: ℙ,
so_apply: x[s],
member: t ∈ T,
function: x:A ─→ B[x],
universe: Type
Lemmas :
exists_wf
\mforall{}[A:Type]. \mforall{}[B:A {}\mrightarrow{} \mBbbP{}]. (\mexists{}a.B[a] \mmember{} \mBbbP{})
Date html generated:
2015_07_17-AM-07_52_30
Last ObjectModification:
2015_01_30-AM-01_13_10
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