Nuprl Lemma : div_bounds_1

∀[a:ℕ]. ∀[n:ℕ+].  (0 ≤ (a ÷ n))


Proof




Definitions occuring in Statement :  nat_plus: ℕ+,  nat: ℕ,  uall: ∀[x:A]. B[x],  le: A ≤ B,  divide: n ÷ m,  natural_number: $n
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat_plus: ℕ+,  nat: ℕ,  le: A ≤ B,  and: P ∧ Q,  not: ¬A,  implies: P ⇒ Q,  false: False,  nequal: a ≠ b ∈ T ,  guard: {T},  uimplies: b supposing a,  all: ∀x:A. B[x],  prop: ℙ,  int_nzero: ℤ-o,  ge: i ≥ j ,  decidable: Dec(P),  or: P ∨ Q,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  uiff: uiff(P;Q),  subtract: n - m,  subtype_rel: A ⊆r B,  top: Top,  less_than': less_than'(a;b),  true: True,  cand: A c∧ B,  sq_type: SQType(T)
Lemmas referenced :  zero-mul,  add-mul-special,  le_transitivity,  subtype_base_sq,  le_reflexive,  multiply-is-int-iff,  mul-commutes,  le-add-cancel,  add_functionality_wrt_le,  minus-one-mul-top,  minus-one-mul,  int_subtype_base,  add-is-int-iff,  zero-add,  add-associates,  add-commutes,  add-swap,  minus-minus,  minus-add,  add-zero,  minus-zero,  condition-implies-le,  not-le-2,  false_wf,  le_weakening2,  mul_preserves_le,  decidable__le,  less_than_wf,  le_wf,  rem_bounds_1,  nequal_wf,  div_rem_sum,  nat_wf,  nat_plus_wf,  equal_wf,  less_than_irreflexivity,  le_weakening,  less_than_transitivity1,  less_than'_wf,  nat_properties,  nat_plus_properties
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  setElimination,  rename,  sqequalRule,  productElimination,  independent_pairEquality,  lambdaEquality,  dependent_functionElimination,  because_Cache,  divideEquality,  lambdaFormation,  natural_numberEquality,  independent_isectElimination,  independent_functionElimination,  voidElimination,  intEquality,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  isect_memberEquality,  dependent_set_memberEquality,  unionElimination,  minusEquality,  independent_pairFormation,  addEquality,  applyEquality,  voidEquality,  baseApply,  closedConclusion,  baseClosed,  multiplyEquality,  instantiate,  cumulativity

Latex:
\mforall{}[a:\mBbbN{}].  \mforall{}[n:\mBbbN{}\msupplus{}].    (0  \mleq{}  (a  \mdiv{}  n))



Date html generated: 2016_05_13-PM-03_35_04
Last ObjectModification: 2016_01_14-PM-06_40_02

Theory : arithmetic


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