Nuprl Lemma : p-adics-equal
∀p:ℕ+. ∀x,y:p-adics(p).  uiff(x = y ∈ p-adics(p);∀n:ℕ+. ((x n) ≡ (y n) mod p^n))
Proof
Definitions occuring in Statement : 
p-adics: p-adics(p)
, 
eqmod: a ≡ b mod m
, 
exp: i^n
, 
nat_plus: ℕ+
, 
uiff: uiff(P;Q)
, 
all: ∀x:A. B[x]
, 
apply: f a
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
uimplies: b supposing a
, 
member: t ∈ T
, 
uall: ∀[x:A]. B[x]
, 
subtype_rel: A ⊆r B
, 
nat_plus: ℕ+
, 
p-adics: p-adics(p)
, 
int_seg: {i..j-}
, 
prop: ℙ
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
iff: P 
⇐⇒ Q
, 
not: ¬A
, 
rev_implies: P 
⇐ Q
, 
implies: P 
⇒ Q
, 
false: False
, 
subtract: n - m
, 
le: A ≤ B
, 
less_than': less_than'(a;b)
, 
true: True
, 
lelt: i ≤ j < k
, 
guard: {T}
, 
nat: ℕ
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
top: Top
, 
int_nzero: ℤ-o
, 
nequal: a ≠ b ∈ T 
Lemmas referenced : 
equal-p-adics, 
eqmod_weakening, 
exp_wf2, 
nat_plus_subtype_nat, 
int_seg_wf, 
and_wf, 
equal_wf, 
nat_plus_wf, 
p-adics_wf, 
all_wf, 
eqmod_wf, 
decidable__lt, 
false_wf, 
not-lt-2, 
less-iff-le, 
condition-implies-le, 
minus-add, 
minus-one-mul, 
zero-add, 
minus-one-mul-top, 
add-commutes, 
add_functionality_wrt_le, 
add-associates, 
add-zero, 
le-add-cancel, 
less_than_wf, 
less_than_transitivity2, 
decidable__le, 
full-omega-unsat, 
intformand_wf, 
intformnot_wf, 
intformle_wf, 
itermConstant_wf, 
itermVar_wf, 
intformless_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_formula_prop_less_lemma, 
int_formula_prop_wf, 
le_wf, 
modulus_base, 
modulus-equal-iff-eqmod, 
int_seg_properties, 
nat_plus_properties, 
decidable__equal_int, 
intformeq_wf, 
int_formula_prop_eq_lemma, 
mod_bounds_1, 
exp_wf3, 
subtype_rel_sets, 
nequal_wf, 
equal-wf-base, 
int_subtype_base, 
mod_bounds, 
lelt_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
independent_pairFormation, 
isect_memberFormation, 
cut, 
introduction, 
axiomEquality, 
hypothesis, 
thin, 
rename, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
hypothesisEquality, 
productElimination, 
independent_isectElimination, 
dependent_functionElimination, 
applyEquality, 
sqequalRule, 
setElimination, 
because_Cache, 
lambdaEquality, 
natural_numberEquality, 
equalitySymmetry, 
dependent_set_memberEquality, 
equalityTransitivity, 
functionEquality, 
intEquality, 
applyLambdaEquality, 
functionExtensionality, 
addEquality, 
unionElimination, 
voidElimination, 
independent_functionElimination, 
minusEquality, 
approximateComputation, 
dependent_pairFormation, 
int_eqEquality, 
isect_memberEquality, 
voidEquality, 
setEquality, 
baseClosed
Latex:
\mforall{}p:\mBbbN{}\msupplus{}.  \mforall{}x,y:p-adics(p).    uiff(x  =  y;\mforall{}n:\mBbbN{}\msupplus{}.  ((x  n)  \mequiv{}  (y  n)  mod  p\^{}n))
Date html generated:
2018_05_21-PM-03_18_42
Last ObjectModification:
2018_05_19-AM-08_10_23
Theory : rings_1
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