Nuprl Lemma : rem_mul

∀[x,y:ℕ]. ∀[m:ℕ+].  ((x * y rem m) = ((x rem m) * (y rem m) rem m) ∈ ℤ)


Proof




Definitions occuring in Statement :  nat_plus: ℕ+,  nat: ℕ,  uall: ∀[x:A]. B[x],  remainder: n rem m,  multiply: n * m,  int: ℤ,  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  nat: ℕ,  subtype_rel: A ⊆r B,  nat_plus: ℕ+,  int_nzero: ℤ-o,  so_lambda: λ2x.t[x],  so_apply: x[s],  uimplies: b supposing a,  prop: ℙ,  all: ∀x:A. B[x],  implies: P ⇒ Q,  nequal: a ≠ b ∈ T ,  not: ¬A,  false: False,  guard: {T},  ge: i ≥ j ,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  top: Top,  and: P ∧ Q,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  decidable: Dec(P),  or: P ∨ Q,  uiff: uiff(P;Q)
Lemmas referenced :  false_wf,  int_term_value_mul_lemma,  int_term_value_add_lemma,  int_formula_prop_le_lemma,  int_formula_prop_not_lemma,  itermMultiply_wf,  itermAdd_wf,  intformle_wf,  intformnot_wf,  multiply-is-int-iff,  add-is-int-iff,  decidable__le,  nat_plus_subtype_nat,  divide_wf,  multiply_nat_wf,  add_nat_wf,  le_wf,  remainder_wf,  mul_bounds_1a,  rem_invariant,  add-commutes,  add-swap,  mul-commutes,  mul-swap,  add-associates,  mul-associates,  mul-distributes-right,  mul-distributes,  nat_wf,  nat_plus_wf,  iff_weakening_equal,  equal_wf,  int_formula_prop_wf,  int_formula_prop_less_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_eq_lemma,  int_formula_prop_and_lemma,  intformless_wf,  itermConstant_wf,  itermVar_wf,  intformeq_wf,  intformand_wf,  satisfiable-full-omega-tt,  nat_properties,  nat_plus_properties,  nequal_wf,  less_than_wf,  subtype_rel_sets,  div_rem_sum
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  setElimination,  rename,  hypothesisEquality,  applyEquality,  sqequalRule,  because_Cache,  lambdaEquality,  natural_numberEquality,  hypothesis,  intEquality,  independent_isectElimination,  setEquality,  lambdaFormation,  dependent_pairFormation,  int_eqEquality,  dependent_functionElimination,  isect_memberEquality,  voidElimination,  voidEquality,  independent_pairFormation,  computeAll,  independent_functionElimination,  equalityEquality,  remainderEquality,  multiplyEquality,  equalityTransitivity,  equalitySymmetry,  productElimination,  axiomEquality,  divideEquality,  dependent_set_memberEquality,  addEquality,  unionElimination,  pointwiseFunctionality,  promote_hyp,  baseApply,  closedConclusion,  baseClosed

Latex:
\mforall{}[x,y:\mBbbN{}].  \mforall{}[m:\mBbbN{}\msupplus{}].    ((x  *  y  rem  m)  =  ((x  rem  m)  *  (y  rem  m)  rem  m))



Date html generated: 2016_05_15-PM-04_48_28
Last ObjectModification: 2016_01_16-AM-11_26_42

Theory : general


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