Nuprl Lemma : eager-append_wf

∀[T:Type]. ∀[as,bs:T List].  (eager-append(as;bs) ∈ T List)


Proof




Definitions occuring in Statement :  eager-append: eager-append(as;bs),  list: T List,  uall: ∀[x:A]. B[x],  member: t ∈ T,  universe: Type
Definitions unfolded in proof :  eager-append: eager-append(as;bs),  uall: ∀[x:A]. B[x],  member: t ∈ T,  so_lambda: so_lambda(x,y,z.t[x; y; z]),  has-value: (a)↓,  uimplies: b supposing a,  so_apply: x[s1;s2;s3]
Lemmas referenced :  list_ind_wf,  list_wf,  value-type-has-value,  list-value-type,  cons_wf
Rules used in proof :  sqequalSubstitution,  sqequalRule,  sqequalReflexivity,  sqequalTransitivity,  computationStep,  isect_memberFormation,  introduction,  cut,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  cumulativity,  hypothesisEquality,  because_Cache,  hypothesis,  lambdaEquality,  callbyvalueReduce,  independent_isectElimination,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  isect_memberEquality,  universeEquality

Latex:
\mforall{}[T:Type].  \mforall{}[as,bs:T  List].    (eager-append(as;bs)  \mmember{}  T  List)



Date html generated: 2016_05_14-AM-06_28_18
Last ObjectModification: 2015_12_26-PM-00_41_03

Theory : list_0


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