Nuprl Lemma : index-split_wf

∀[T:Type]. ∀[L:T List]. ∀[ids:ℕ List].  (index-split(L;ids) ∈ T List × (T List))


Proof




Definitions occuring in Statement :  index-split: index-split(L;idxs),  list: T List,  nat: ℕ,  uall: ∀[x:A]. B[x],  member: t ∈ T,  product: x:A × B[x],  universe: Type
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  index-split: index-split(L;idxs),  let: let,  subtype_rel: A ⊆r B,  all: ∀x:A. B[x],  uimplies: b supposing a,  int_seg: {i..j-},  prop: ℙ,  nat: ℕ
Lemmas referenced :  firstn_wf,  permute-to-front_wf,  length_wf,  filter_wf5,  upto_wf,  l_member_wf,  subtype_rel_list,  int_seg_wf,  int-list-member_wf,  nat_wf,  nth_tl_wf,  list_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  independent_pairEquality,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  cumulativity,  hypothesisEquality,  because_Cache,  hypothesis,  intEquality,  applyEquality,  lambdaEquality,  lambdaFormation,  natural_numberEquality,  independent_isectElimination,  setElimination,  rename,  dependent_functionElimination,  setEquality,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  isect_memberEquality,  universeEquality

Latex:
\mforall{}[T:Type].  \mforall{}[L:T  List].  \mforall{}[ids:\mBbbN{}  List].    (index-split(L;ids)  \mmember{}  T  List  \mtimes{}  (T  List))



Date html generated: 2016_05_15-PM-04_24_34
Last ObjectModification: 2015_12_27-PM-02_52_26

Theory : general


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