Nuprl Lemma : reg-seq-mul-assoc

∀x,y,z:ℝ.  bdd-diff(reg-seq-mul(reg-seq-mul(x;y);z);reg-seq-mul(x;reg-seq-mul(y;z)))


Proof




Definitions occuring in Statement :  reg-seq-mul: reg-seq-mul(x;y),  real: ℝ,  bdd-diff: bdd-diff(f;g),  all: ∀x:A. B[x]
Definitions unfolded in proof :  all: ∀x:A. B[x],  reg-seq-mul: reg-seq-mul(x;y),  bdd-diff: bdd-diff(f;g),  exists: ∃x:A. B[x],  member: t ∈ T,  nat: ℕ,  uall: ∀[x:A]. B[x],  subtype_rel: A ⊆r B,  le: A ≤ B,  and: P ∧ Q,  less_than': less_than'(a;b),  false: False,  not: ¬A,  implies: P ⇒ Q,  prop: ℙ,  int_upper: {i...},  so_lambda: λ2x.t[x],  real: ℝ,  nat_plus: ℕ+,  so_apply: x[s],  uimplies: b supposing a,  guard: {T},  ge: i ≥ j ,  decidable: Dec(P),  or: P ∨ Q,  uiff: uiff(P;Q),  satisfiable_int_formula: satisfiable_int_formula(fmla),  top: Top,  nequal: a ≠ b ∈ T ,  squash: ↓T,  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  int_nzero: ℤ-o,  sq_stable: SqStable(P),  rev_uimplies: rev_uimplies(P;Q),  subtract: n - m,  sq_type: SQType(T),  less_than: a < b,  cand: A c∧ B
Lemmas referenced :  imax_wf,  canonical-bound_wf,  add_nat_wf,  multiply_nat_wf,  false_wf,  le_wf,  imax_nat,  int_upper_wf,  all_wf,  nat_plus_wf,  absval_wf,  nat_wf,  subtype_rel_set,  int_upper_subtype_nat,  nat_properties,  decidable__le,  add-is-int-iff,  multiply-is-int-iff,  satisfiable-full-omega-tt,  intformand_wf,  intformnot_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  itermAdd_wf,  itermMultiply_wf,  intformeq_wf,  int_formula_prop_and_lemma,  int_formula_prop_not_lemma,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_term_value_add_lemma,  int_term_value_mul_lemma,  int_formula_prop_eq_lemma,  int_formula_prop_wf,  equal_wf,  mul_cancel_in_le,  subtract_wf,  nat_plus_properties,  intformless_wf,  int_formula_prop_less_lemma,  absval_nat_plus,  equal-wf-T-base,  squash_wf,  true_wf,  absval_mul,  iff_weakening_equal,  equal-wf-base,  real_wf,  nequal_wf,  left_mul_subtract_distrib,  div_rem_sum2,  rem_bounds_absval,  int_subtype_base,  less_than_wf,  set_wf,  sq_stable__less_than,  le_functionality,  le_weakening,  add_functionality_wrt_le,  int-triangle-inequality,  minus-add,  minus-minus,  add-associates,  minus-one-mul,  mul-commutes,  add-swap,  add-commutes,  mul_assoc,  subtype_base_sq,  decidable__equal_int,  mul-distributes-right,  mul-associates,  mul-distributes,  mul-swap,  one-mul,  add-mul-special,  zero-mul,  zero-add,  itermMinus_wf,  int_term_value_minus_lemma,  add_functionality_wrt_eq,  absval_sym,  multiply_functionality_wrt_le,  sq_stable__le,  nat_plus_subtype_nat,  absval_pos,  imax_ub,  int_upper_properties,  mul_preserves_le
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation,  sqequalRule,  dependent_pairFormation,  dependent_set_memberEquality,  addEquality,  multiplyEquality,  natural_numberEquality,  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  applyEquality,  because_Cache,  independent_pairFormation,  lambdaEquality,  setElimination,  rename,  setEquality,  independent_isectElimination,  equalityTransitivity,  equalitySymmetry,  applyLambdaEquality,  dependent_functionElimination,  unionElimination,  pointwiseFunctionality,  promote_hyp,  baseApply,  closedConclusion,  baseClosed,  productElimination,  int_eqEquality,  intEquality,  isect_memberEquality,  voidElimination,  voidEquality,  computeAll,  independent_functionElimination,  divideEquality,  imageElimination,  imageMemberEquality,  universeEquality,  remainderEquality,  minusEquality,  instantiate,  cumulativity,  inlFormation,  inrFormation

Latex:
\mforall{}x,y,z:\mBbbR{}.    bdd-diff(reg-seq-mul(reg-seq-mul(x;y);z);reg-seq-mul(x;reg-seq-mul(y;z)))



Date html generated: 2017_10_02-PM-07_14_56
Last ObjectModification: 2017_07_28-AM-07_20_17

Theory : reals


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