Nuprl Lemma : p-mul-int-cancelation-1

∀[p:{2...}]. ∀[k:ℕ]. ∀[a,b:p-adics(p)].  ((p^k(p) * a = p^k(p) * b ∈ p-adics(p)) ⇒ (a = b ∈ p-adics(p)))


Proof




Definitions occuring in Statement :  p-int: k(p),  p-mul: x * y,  p-adics: p-adics(p),  exp: i^n,  int_upper: {i...},  nat: ℕ,  uall: ∀[x:A]. B[x],  implies: P ⇒ Q,  natural_number: $n,  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  implies: P ⇒ Q,  all: ∀x:A. B[x],  nat_plus: ℕ+,  nat: ℕ,  int_upper: {i...},  le: A ≤ B,  and: P ∧ Q,  decidable: Dec(P),  or: P ∨ Q,  iff: P ⇐⇒ Q,  not: ¬A,  rev_implies: P ⇐ Q,  false: False,  uiff: uiff(P;Q),  uimplies: b supposing a,  subtype_rel: A ⊆r B,  less_than': less_than'(a;b),  true: True,  prop: ℙ,  rev_uimplies: rev_uimplies(P;Q),  p-int: k(p),  p-mul: x * y,  int_seg: {i..j-},  p-adics: p-adics(p),  guard: {T},  ge: i ≥ j ,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  top: Top,  so_lambda: λ2x.t[x],  so_apply: x[s],  sq_type: SQType(T),  eqmod: a ≡ b mod m,  divides: b | a,  int_nzero: ℤ-o,  nequal: a ≠ b ∈ T ,  lelt: i ≤ j < k
Lemmas referenced :  p-adics-equal,  decidable__lt,  istype-false,  not-lt-2,  add_functionality_wrt_le,  add-commutes,  zero-add,  le-add-cancel,  less_than_wf,  nat_plus_wf,  p-mul_wf,  p-int_wf,  exp_wf2,  p-adics_wf,  nat_wf,  int_upper_wf,  nat_plus_subtype_nat,  p-reduce_wf,  eqmod_functionality_wrt_eqmod,  eqmod_transitivity,  p-reduce-eqmod,  multiply_functionality_wrt_eqmod,  eqmod_weakening,  nat_plus_properties,  nat_properties,  int_upper_properties,  full-omega-unsat,  intformand_wf,  intformnot_wf,  intformless_wf,  itermConstant_wf,  itermAdd_wf,  itermVar_wf,  intformle_wf,  istype-int,  int_formula_prop_and_lemma,  istype-void,  int_formula_prop_not_lemma,  int_formula_prop_less_lemma,  int_term_value_constant_lemma,  int_term_value_add_lemma,  int_term_value_var_lemma,  int_formula_prop_le_lemma,  int_formula_prop_wf,  p-adic-property,  decidable__le,  le_wf,  eqmod_inversion,  subtype_base_sq,  set_subtype_base,  int_subtype_base,  exp-positive,  exp_add,  subtract_wf,  mul_cancel_in_eq,  exp_wf3,  subtype_rel_sets,  nequal_wf,  intformeq_wf,  int_formula_prop_eq_lemma,  exp_wf_nat_plus,  int_seg_properties,  decidable__equal_int,  itermMultiply_wf,  itermSubtract_wf,  int_term_value_mul_lemma,  int_term_value_subtract_lemma
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  introduction,  cut,  lambdaFormation_alt,  hypothesis,  extract_by_obid,  sqequalHypSubstitution,  dependent_functionElimination,  thin,  dependent_set_memberEquality_alt,  because_Cache,  setElimination,  rename,  productElimination,  natural_numberEquality,  hypothesisEquality,  unionElimination,  independent_pairFormation,  voidElimination,  independent_functionElimination,  independent_isectElimination,  isectElimination,  sqequalRule,  applyEquality,  universeIsType,  equalityIsType1,  inhabitedIsType,  lambdaEquality_alt,  axiomEquality,  functionIsTypeImplies,  isect_memberEquality_alt,  isectIsTypeImplies,  multiplyEquality,  equalityTransitivity,  equalitySymmetry,  addEquality,  approximateComputation,  dependent_pairFormation_alt,  int_eqEquality,  intEquality,  instantiate,  cumulativity,  closedConclusion,  equalityIsType4,  baseApply,  baseClosed,  setIsType

Latex:
\mforall{}[p:\{2...\}].  \mforall{}[k:\mBbbN{}].  \mforall{}[a,b:p-adics(p)].    ((p\^{}k(p)  *  a  =  p\^{}k(p)  *  b)  {}\mRightarrow{}  (a  =  b))



Date html generated: 2019_10_15-AM-10_35_20
Last ObjectModification: 2018_10_15-PM-08_54_21

Theory : rings_1


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