Nuprl Lemma : fpf-restrict_wf2

[A:Type]. ∀[B:A ⟶ Type]. ∀[f:x:A fp-> B[x]]. ∀[P:A ⟶ 𝔹].  (fpf-restrict(f;P) ∈ x:A fp-> B[x])


Proof




Definitions occuring in Statement :  fpf-restrict: fpf-restrict(f;P) fpf: a:A fp-> B[a] bool: 𝔹 uall: [x:A]. B[x] so_apply: x[s] member: t ∈ T function: x:A ⟶ B[x] universe: Type
Definitions unfolded in proof :  fpf-restrict: fpf-restrict(f;P) fpf: a:A fp-> B[a] fpf-domain: fpf-domain(f) mk_fpf: mk_fpf(L;f) uall: [x:A]. B[x] member: t ∈ T pi1: fst(t) subtype_rel: A ⊆B so_lambda: λ2x.t[x] so_apply: x[s] prop: uimplies: supposing a all: x:A. B[x] top: Top pi2: snd(t) implies:  Q iff: ⇐⇒ Q and: P ∧ Q

Latex:
\mforall{}[A:Type].  \mforall{}[B:A  {}\mrightarrow{}  Type].  \mforall{}[f:x:A  fp->  B[x]].  \mforall{}[P:A  {}\mrightarrow{}  \mBbbB{}].    (fpf-restrict(f;P)  \mmember{}  x:A  fp->  B[x])



Date html generated: 2016_05_16-AM-11_33_19
Last ObjectModification: 2015_12_29-AM-09_28_54

Theory : event-ordering


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