Nuprl Lemma : polyvar-val

∀[v:ℕ]. ∀[l:{l:ℤ List| v < ||l||} ].  (polyvar(v)@l = l[v] ∈ ℤ)


Proof




Definitions occuring in Statement :  poly-int-val: p@l,  polyvar: polyvar(v),  select: L[n],  length: ||as||,  list: T List,  nat: ℕ,  less_than: a < b,  uall: ∀[x:A]. B[x],  set: {x:A| B[x]} ,  int: ℤ,  equal: s = t ∈ 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,  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,  so_lambda: λ2x.t[x],  so_apply: x[s],  polyvar: polyvar(v),  decidable: Dec(P),  or: P ∨ Q,  poly-int-val: p@l,  poly-val-fun: poly-val-fun(p),  tree_node: tree_node(left;right),  tree_ind: tree_ind,  tree_leaf: tree_leaf(value),  tl: tl(l),  nil: [],  it: ⋅,  select: L[n],  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  less_than: a < b,  squash: ↓T,  less_than': less_than'(a;b),  cons: [a / b],  has-value: (a)↓,  polynom: polynom(n),  subtype_rel: A ⊆r B,  uiff: uiff(P;Q),  sq_type: SQType(T),  guard: {T},  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q
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,  set_wf,  list_wf,  length_wf,  decidable__le,  subtract_wf,  intformnot_wf,  itermSubtract_wf,  int_formula_prop_not_lemma,  int_term_value_subtract_lemma,  nat_wf,  list-cases,  length_of_nil_lemma,  stuck-spread,  base_wf,  product_subtype_list,  length_of_cons_lemma,  reduce_tl_cons_lemma,  reduce_hd_cons_lemma,  value-type-has-value,  list-value-type,  int-value-type,  decidable__equal_int,  intformeq_wf,  itermAdd_wf,  itermMultiply_wf,  int_formula_prop_eq_lemma,  int_term_value_add_lemma,  int_term_value_mul_lemma,  polyvar_wf,  le_wf,  polynom_wf,  equal_wf,  polyform_wf,  value-type-polyform,  equal-wf-base,  int_subtype_base,  reduce_tl_nil_lemma,  decidable__lt,  add-is-int-iff,  false_wf,  subtype_base_sq,  squash_wf,  true_wf,  select_cons_tl,  iff_weakening_equal
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,  dependent_pairFormation,  lambdaEquality,  int_eqEquality,  intEquality,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality,  sqequalRule,  independent_pairFormation,  computeAll,  independent_functionElimination,  axiomEquality,  unionElimination,  callbyvalueReduce,  sqleReflexivity,  baseClosed,  imageElimination,  productElimination,  promote_hyp,  hypothesis_subsumption,  because_Cache,  dependent_set_memberEquality,  addEquality,  equalityTransitivity,  equalitySymmetry,  axiomSqleEquality,  applyEquality,  int_eqReduceFalseSq,  pointwiseFunctionality,  baseApply,  closedConclusion,  instantiate,  cumulativity,  universeEquality,  imageMemberEquality

Latex:
\mforall{}[v:\mBbbN{}].  \mforall{}[l:\{l:\mBbbZ{}  List|  v  <  ||l||\}  ].    (polyvar(v)@l  =  l[v])



Date html generated: 2017_10_01-AM-08_32_33
Last ObjectModification: 2017_07_26-PM-04_25_13

Theory : integer!polynomial!trees


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