Nuprl Lemma : for_wf

∀[A,B,C:Type]. ∀[f:B ⟶ C ⟶ C]. ∀[k:C]. ∀[as:A List]. ∀[g:A ⟶ B].  (For{A,f,k} x ∈ as. g[x] ∈ C)


Proof




Definitions occuring in Statement :  for: For{T,op,id} x ∈ as. f[x],  list: T List,  uall: ∀[x:A]. B[x],  so_apply: x[s],  member: t ∈ T,  function: x:A ⟶ B[x],  universe: Type
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  for: For{T,op,id} x ∈ as. f[x],  tlambda: λx:T. b[x],  so_apply: x[s]
Lemmas referenced :  reduce_wf,  map_wf,  list_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  Error :isect_memberFormation_alt,  introduction,  cut,  sqequalRule,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  lambdaEquality,  applyEquality,  hypothesis,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  Error :functionIsType,  Error :universeIsType,  isect_memberEquality,  functionEquality,  because_Cache,  Error :inhabitedIsType,  universeEquality

Latex:
\mforall{}[A,B,C:Type].  \mforall{}[f:B  {}\mrightarrow{}  C  {}\mrightarrow{}  C].  \mforall{}[k:C].  \mforall{}[as:A  List].  \mforall{}[g:A  {}\mrightarrow{}  B].    (For\{A,f,k\}  x  \mmember{}  as.  g[x]  \mmember{}  C)



Date html generated: 2019_06_20-PM-00_39_11
Last ObjectModification: 2018_09_26-PM-02_05_45

Theory : list_0


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