Nuprl Lemma : mod_bounds_1

∀[a:ℤ]. ∀[n:ℤ-o].  ((0 ≤ (a mod n)) ∧ a mod n < |n|)


Proof




Definitions occuring in Statement :  modulus: a mod n,  absval: |i|,  int_nzero: ℤ-o,  less_than: a < b,  uall: ∀[x:A]. B[x],  le: A ≤ B,  and: P ∧ Q,  natural_number: $n,  int: ℤ
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  and: P ∧ Q,  le: A ≤ B,  not: ¬A,  implies: P ⇒ Q,  false: False,  subtype_rel: A ⊆r B,  nat: ℕ,  prop: ℙ,  int_nzero: ℤ-o,  uimplies: b supposing a,  modulus: a mod n,  has-value: (a)↓,  nequal: a ≠ b ∈ T ,  all: ∀x:A. B[x],  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  less_than: a < b,  less_than': less_than'(a;b),  top: Top,  true: True,  squash: ↓T,  bfalse: ff,  exists: ∃x:A. B[x],  or: P ∨ Q,  sq_type: SQType(T),  guard: {T},  bnot: ¬bb,  ifthenelse: if b then t else f fi ,  assert: ↑b,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  gt: i > j
Lemmas referenced :  less_than'_wf,  modulus_wf,  nat_wf,  member-less_than,  absval_wf,  int_nzero_wf,  zero-le-nat,  value-type-has-value,  int-value-type,  equal_wf,  lt_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_lt_int,  top_wf,  less_than_wf,  eqff_to_assert,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  iff_transitivity,  assert_wf,  bnot_wf,  not_wf,  iff_weakening_uiff,  assert_of_bnot,  add_functionality_wrt_lt,  le_reflexive,  zero-add,  add-commutes,  le_wf,  absval_pos,  not-gt-2,  iff_weakening_equal,  rem_bounds_z,  less_than_transitivity2
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  independent_pairFormation,  hypothesis,  sqequalRule,  sqequalHypSubstitution,  productElimination,  thin,  independent_pairEquality,  lambdaEquality,  dependent_functionElimination,  hypothesisEquality,  because_Cache,  extract_by_obid,  isectElimination,  applyEquality,  setElimination,  rename,  natural_numberEquality,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  independent_isectElimination,  isect_memberEquality,  voidElimination,  intEquality,  callbyvalueReduce,  remainderEquality,  lambdaFormation,  independent_functionElimination,  unionElimination,  equalityElimination,  lessCases,  sqequalAxiom,  voidEquality,  imageMemberEquality,  baseClosed,  imageElimination,  dependent_pairFormation,  promote_hyp,  instantiate,  cumulativity,  impliesFunctionality,  dependent_set_memberEquality

Latex:
\mforall{}[a:\mBbbZ{}].  \mforall{}[n:\mBbbZ{}\msupminus{}\msupzero{}].    ((0  \mleq{}  (a  mod  n))  \mwedge{}  a  mod  n  <  |n|)



Date html generated: 2018_05_21-PM-00_02_02
Last ObjectModification: 2018_05_19-AM-07_13_07

Theory : arithmetic


Home Index