Nuprl Lemma : es-interface-filter_wf

[Info,A:Type]. ∀[X:EClass(A)]. ∀[P:A ─→ 𝔹].  (X|a.P[a] ∈ EClass({a:A| ↑P[a]} ))


Proof




Definitions occuring in Statement :  es-interface-filter: X|a.P[a] eclass: EClass(A[eo; e]) assert: b bool: 𝔹 uall: [x:A]. B[x] so_apply: x[s] member: t ∈ T set: {x:A| B[x]}  function: x:A ─→ B[x] universe: Type
Lemmas :  eq_int_wf bag-size_wf nat_wf bool_wf eqtt_to_assert assert_of_eq_int bag-filter_wf eqff_to_assert equal_wf bool_cases_sqequal subtype_base_sq bool_subtype_base assert-bnot neg_assert_of_eq_int empty-bag_wf assert_wf es-E_wf event-ordering+_subtype eclass_wf event-ordering+_wf

Latex:
\mforall{}[Info,A:Type].  \mforall{}[X:EClass(A)].  \mforall{}[P:A  {}\mrightarrow{}  \mBbbB{}].    (X|a.P[a]  \mmember{}  EClass(\{a:A|  \muparrow{}P[a]\}  ))



Date html generated: 2015_07_20-PM-03_33_02
Last ObjectModification: 2015_01_27-PM-10_14_47

Home Index