Nuprl Lemma : mklist-add

∀[T:Type]. ∀[n,m:ℕ]. ∀[f:ℕn + m ⟶ T].  (mklist(n + m;f) = (mklist(n;f) @ mklist(m;λi.(f (n + i)))) ∈ (T List))


Proof




Definitions occuring in Statement :  mklist: mklist(n;f),  append: as @ bs,  list: T List,  int_seg: {i..j-},  nat: ℕ,  uall: ∀[x:A]. B[x],  apply: f a,  lambda: λx.A[x],  function: x:A ⟶ B[x],  add: n + m,  natural_number: $n,  universe: Type,  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat: ℕ,  int_seg: {i..j-},  uiff: uiff(P;Q),  and: P ∧ Q,  uimplies: b supposing a,  lelt: i ≤ j < k,  ge: i ≥ j ,  all: ∀x:A. B[x],  decidable: Dec(P),  or: P ∨ Q,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  false: False,  implies: P ⇒ Q,  not: ¬A,  top: Top,  prop: ℙ,  le: A ≤ B,  less_than: a < b,  squash: ↓T,  true: True,  subtype_rel: A ⊆r B,  guard: {T},  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  sq_type: SQType(T),  subtract: n - m
Lemmas referenced :  int_seg_wf,  add-member-int_seg1,  nat_properties,  decidable__le,  subtract_wf,  satisfiable-full-omega-tt,  intformand_wf,  intformnot_wf,  intformle_wf,  itermSubtract_wf,  itermConstant_wf,  itermVar_wf,  int_formula_prop_and_lemma,  int_formula_prop_not_lemma,  int_formula_prop_le_lemma,  int_term_value_subtract_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_wf,  decidable__lt,  intformless_wf,  itermAdd_wf,  int_formula_prop_less_lemma,  int_term_value_add_lemma,  lelt_wf,  list_extensionality,  mklist_wf,  le_wf,  append_wf,  mklist_length,  length-append,  nat_wf,  less_than_wf,  length_wf,  equal_wf,  squash_wf,  true_wf,  select_wf,  select_append_front,  iff_weakening_equal,  mklist_select,  select_append_back,  subtype_base_sq,  int_subtype_base,  minus-one-mul,  add-commutes,  add-swap,  add-mul-special,  zero-mul,  add-zero
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  lambdaEquality,  applyEquality,  functionExtensionality,  hypothesisEquality,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  natural_numberEquality,  addEquality,  setElimination,  rename,  because_Cache,  hypothesis,  productElimination,  independent_isectElimination,  dependent_set_memberEquality,  independent_pairFormation,  dependent_functionElimination,  unionElimination,  dependent_pairFormation,  int_eqEquality,  intEquality,  isect_memberEquality,  voidElimination,  voidEquality,  sqequalRule,  computeAll,  cumulativity,  functionEquality,  axiomEquality,  universeEquality,  lambdaFormation,  addLevel,  levelHypothesis,  imageElimination,  equalityTransitivity,  equalitySymmetry,  imageMemberEquality,  baseClosed,  independent_functionElimination,  instantiate

Latex:
\mforall{}[T:Type].  \mforall{}[n,m:\mBbbN{}].  \mforall{}[f:\mBbbN{}n  +  m  {}\mrightarrow{}  T].    (mklist(n  +  m;f)  =  (mklist(n;f)  @  mklist(m;\mlambda{}i.(f  (n  +  i)))))



Date html generated: 2017_04_17-AM-07_42_02
Last ObjectModification: 2017_02_27-PM-04_15_41

Theory : list_1


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