Nuprl Lemma : mklist-add1-cons

∀[n:ℕ]. ∀[f:Top].  (mklist(n + 1;f) ~ [f 0 / mklist(n;λi.(f (i + 1)))])


Proof




Definitions occuring in Statement :  mklist: mklist(n;f),  cons: [a / b],  nat: ℕ,  uall: ∀[x:A]. B[x],  top: Top,  apply: f a,  lambda: λx.A[x],  add: n + m,  natural_number: $n,  sqequal: s ~ t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat: ℕ,  implies: P ⇒ Q,  false: False,  ge: i ≥ j ,  uimplies: b supposing a,  not: ¬A,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  all: ∀x:A. B[x],  top: Top,  and: P ∧ Q,  prop: ℙ,  mklist: mklist(n;f),  append: as @ bs,  so_lambda: so_lambda(x,y,z.t[x; y; z]),  so_apply: x[s1;s2;s3],  decidable: Dec(P),  or: P ∨ Q,  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  bfalse: ff,  sq_type: SQType(T),  guard: {T},  bnot: ¬bb,  ifthenelse: if b then t else f fi ,  assert: ↑b
Lemmas referenced :  nat_properties,  full-omega-unsat,  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,  top_wf,  primrec0_lemma,  primrec1_lemma,  list_ind_nil_lemma,  decidable__le,  subtract_wf,  intformnot_wf,  itermSubtract_wf,  int_formula_prop_not_lemma,  int_term_value_subtract_lemma,  nat_wf,  subtract-add-cancel,  primrec-unroll,  lt_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_lt_int,  itermAdd_wf,  int_term_value_add_lemma,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  add-subtract-cancel,  list_ind_cons_lemma
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  setElimination,  rename,  intWeakElimination,  lambdaFormation,  natural_numberEquality,  independent_isectElimination,  approximateComputation,  independent_functionElimination,  dependent_pairFormation,  lambdaEquality,  int_eqEquality,  intEquality,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality,  sqequalRule,  independent_pairFormation,  sqequalAxiom,  unionElimination,  because_Cache,  addEquality,  equalityElimination,  equalityTransitivity,  equalitySymmetry,  productElimination,  promote_hyp,  instantiate,  cumulativity

Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[f:Top].    (mklist(n  +  1;f)  \msim{}  [f  0  /  mklist(n;\mlambda{}i.(f  (i  +  1)))])



Date html generated: 2018_05_21-PM-00_36_53
Last ObjectModification: 2018_05_19-AM-06_43_57

Theory : list_1


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