Nuprl Lemma : fpf-sub_weakening

[A:Type]. ∀[B:A ─→ Type]. ∀[eq:EqDecider(A)]. ∀[f,g:a:A fp-> B[a]].  f ⊆ supposing g ∈ a:A fp-> B[a]


Proof




Definitions occuring in Statement :  fpf-sub: f ⊆ g fpf: a:A fp-> B[a] deq: EqDecider(T) uimplies: supposing a uall: [x:A]. B[x] so_apply: x[s] function: x:A ─→ B[x] universe: Type equal: t ∈ T
Lemmas :  fpf-sub_wf fpf-sub_witness equal_wf fpf_wf deq_wf fpf-ap_wf assert_wf fpf-dom_wf subtype-fpf2 top_wf subtype_top
\mforall{}[A:Type].  \mforall{}[B:A  {}\mrightarrow{}  Type].  \mforall{}[eq:EqDecider(A)].  \mforall{}[f,g:a:A  fp->  B[a]].    f  \msubseteq{}  g  supposing  f  =  g



Date html generated: 2015_07_17-AM-09_17_40
Last ObjectModification: 2015_01_28-AM-07_51_08

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