Nuprl Lemma : zip_nil_lemma

∀x:Top. (zip([];x) ~ [])


Proof




Definitions occuring in Statement :  zip: zip(as;bs),  nil: [],  top: Top,  all: ∀x:A. B[x],  sqequal: s ~ t
Definitions unfolded in proof :  all: ∀x:A. B[x],  zip: zip(as;bs),  so_lambda: so_lambda(x,y,z.t[x; y; z]),  member: t ∈ T,  top: Top,  so_apply: x[s1;s2;s3]
Lemmas referenced :  list_ind_nil_lemma,  top_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation,  cut,  sqequalRule,  lemma_by_obid,  sqequalHypSubstitution,  dependent_functionElimination,  thin,  isect_memberEquality,  voidElimination,  voidEquality,  hypothesis

Latex:
\mforall{}x:Top.  (zip([];x)  \msim{}  [])



Date html generated: 2016_05_14-PM-03_14_20
Last ObjectModification: 2015_12_26-PM-01_46_07

Theory : list_1


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