Nuprl Lemma : select-repn

∀[x:Top]. ∀[n:ℕ]. ∀[i:ℕn].  (repn(n;x)[i] ~ x)


Proof




Definitions occuring in Statement :  repn: repn(n;x),  select: L[n],  int_seg: {i..j-},  nat: ℕ,  uall: ∀[x:A]. B[x],  top: Top,  natural_number: $n,  sqequal: s ~ t
Definitions unfolded in proof :  repn: repn(n;x),  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat: ℕ,  implies: P ⇒ Q,  false: False,  ge: i ≥ j ,  uimplies: b supposing a,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  not: ¬A,  all: ∀x:A. B[x],  top: Top,  and: P ∧ Q,  prop: ℙ,  select: L[n],  nil: [],  it: ⋅,  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  guard: {T},  int_seg: {i..j-},  lelt: i ≤ j < k,  decidable: Dec(P),  or: P ∨ Q,  bool: 𝔹,  unit: Unit,  btrue: tt,  uiff: uiff(P;Q),  ifthenelse: if b then t else f fi ,  bfalse: ff,  sq_type: SQType(T),  bnot: ¬bb,  assert: ↑b,  nequal: a ≠ b ∈ T 
Lemmas referenced :  nat_properties,  satisfiable-full-omega-tt,  intformand_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  intformless_wf,  int_formula_prop_and_lemma,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  ge_wf,  less_than_wf,  int_seg_wf,  primrec0_lemma,  stuck-spread,  base_wf,  int_seg_properties,  decidable__le,  subtract_wf,  intformnot_wf,  itermSubtract_wf,  int_formula_prop_not_lemma,  int_term_value_subtract_lemma,  primrec-unroll,  eq_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_eq_int,  intformeq_wf,  int_formula_prop_eq_lemma,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  neg_assert_of_eq_int,  select-cons,  le_int_wf,  assert_of_le_int,  le_wf,  nat_wf,  top_wf,  decidable__lt,  lelt_wf
Rules used in proof :  sqequalSubstitution,  sqequalRule,  sqequalReflexivity,  sqequalTransitivity,  computationStep,  isect_memberFormation,  introduction,  cut,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  setElimination,  rename,  intWeakElimination,  lambdaFormation,  natural_numberEquality,  independent_isectElimination,  dependent_pairFormation,  lambdaEquality,  int_eqEquality,  intEquality,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality,  independent_pairFormation,  computeAll,  independent_functionElimination,  sqequalAxiom,  baseClosed,  because_Cache,  productElimination,  unionElimination,  equalityElimination,  equalityTransitivity,  equalitySymmetry,  promote_hyp,  instantiate,  cumulativity,  dependent_set_memberEquality

Latex:
\mforall{}[x:Top].  \mforall{}[n:\mBbbN{}].  \mforall{}[i:\mBbbN{}n].    (repn(n;x)[i]  \msim{}  x)



Date html generated: 2017_04_17-AM-07_50_00
Last ObjectModification: 2017_02_27-PM-04_23_56

Theory : list_1


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