Nuprl Lemma : nearby-increasing-partition
∀I:Interval
  ((icompact(I) ∧ iproper(I))
  
⇒ (∀p:partition(I). ∀e:{e:ℝ| r0 < e} .  ∃q:partition(I). (frs-increasing(q) ∧ nearby-partitions(e;p;q))))
Proof
Definitions occuring in Statement : 
nearby-partitions: nearby-partitions(e;p;q)
, 
partition: partition(I)
, 
frs-increasing: frs-increasing(p)
, 
icompact: icompact(I)
, 
iproper: iproper(I)
, 
interval: Interval
, 
rless: x < y
, 
int-to-real: r(n)
, 
real: ℝ
, 
all: ∀x:A. B[x]
, 
exists: ∃x:A. B[x]
, 
implies: P 
⇒ Q
, 
and: P ∧ Q
, 
set: {x:A| B[x]} 
, 
natural_number: $n
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
and: P ∧ Q
, 
member: t ∈ T
, 
exists: ∃x:A. B[x]
, 
partition: partition(I)
, 
iproper: iproper(I)
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
uimplies: b supposing a
, 
icompact: icompact(I)
, 
subtype_rel: A ⊆r B
, 
top: Top
, 
bool: 𝔹
, 
unit: Unit
, 
it: ⋅
, 
btrue: tt
, 
uiff: uiff(P;Q)
, 
bfalse: ff
, 
or: P ∨ Q
, 
sq_type: SQType(T)
, 
guard: {T}
, 
bnot: ¬bb
, 
ifthenelse: if b then t else f fi 
, 
assert: ↑b
, 
false: False
, 
not: ¬A
, 
rev_implies: P 
⇐ Q
, 
iff: P 
⇐⇒ Q
, 
le: A ≤ B
, 
rnonneg: rnonneg(x)
, 
rleq: x ≤ y
, 
nearby-partitions: nearby-partitions(e;p;q)
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
lelt: i ≤ j < k
, 
nat_plus: ℕ+
, 
sq_exists: ∃x:A [B[x]]
, 
rless: x < y
, 
int_seg: {i..j-}
, 
so_apply: x[s1;s2]
, 
so_lambda: λ2x y.t[x; y]
, 
nil: []
, 
select: L[n]
, 
frs-increasing: frs-increasing(p)
, 
cand: A c∧ B
, 
squash: ↓T
, 
so_apply: x[s]
, 
so_lambda: λ2x.t[x]
, 
nat: ℕ
, 
sq_stable: SqStable(P)
, 
so_apply: x[s1;s2;s3]
, 
so_lambda: so_lambda(x,y,z.t[x; y; z])
, 
less_than: a < b
, 
real: ℝ
, 
rneq: x ≠ y
, 
true: True
, 
subtract: n - m
, 
decidable: Dec(P)
, 
cons: [a / b]
, 
less_than': less_than'(a;b)
, 
ge: i ≥ j 
, 
partitions: partitions(I;p)
, 
frs-non-dec: frs-non-dec(L)
, 
req_int_terms: t1 ≡ t2
, 
rev_uimplies: rev_uimplies(P;Q)
, 
rge: x ≥ y
, 
nequal: a ≠ b ∈ T 
, 
rdiv: (x/y)
, 
last: last(L)
Lemmas referenced : 
small-reciprocal-real, 
real_wf, 
rless_wf, 
int-to-real_wf, 
partition_wf, 
icompact_wf, 
iproper_wf, 
interval_wf, 
null_wf3, 
subtype_rel_list, 
top_wf, 
istype-void, 
eqtt_to_assert, 
assert_of_null, 
eqff_to_assert, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_wf, 
bool_subtype_base, 
assert-bnot, 
iff_weakening_uiff, 
assert_wf, 
equal-wf-T-base, 
list_wf, 
nil_wf, 
nearby-partitions_wf, 
frs-increasing_wf, 
le_witness_for_triv, 
int_seg_wf, 
int_formula_prop_wf, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_var_lemma, 
int_formula_prop_less_lemma, 
int_formula_prop_and_lemma, 
intformle_wf, 
itermConstant_wf, 
itermVar_wf, 
intformless_wf, 
intformand_wf, 
full-omega-unsat, 
nat_plus_properties, 
int_seg_properties, 
istype-base, 
stuck-spread, 
length_of_nil_lemma, 
iff_weakening_equal, 
subtype_rel_self, 
squash_wf, 
partitions_wf, 
int_subtype_base, 
istype-int, 
le_wf, 
set_subtype_base, 
istype-nat, 
length_wf_nat, 
sq_stable__partitions, 
list_ind_cons_lemma, 
list_ind_nil_lemma, 
cons_wf, 
int_term_value_add_lemma, 
itermAdd_wf, 
false_wf, 
int_term_value_subtract_lemma, 
itermSubtract_wf, 
subtract-is-int-iff, 
decidable__le, 
int_formula_prop_not_lemma, 
intformnot_wf, 
rless-int, 
rdiv_wf, 
sq_stable__less_than, 
length_wf, 
subtract_wf, 
exists_wf, 
right-endpoint_wf, 
istype-assert, 
last_wf, 
le-add-cancel, 
add-zero, 
add-associates, 
add_functionality_wrt_le, 
add-commutes, 
minus-one-mul-top, 
zero-add, 
minus-one-mul, 
minus-add, 
condition-implies-le, 
not-lt-2, 
decidable__lt, 
length_of_cons_lemma, 
product_subtype_list, 
list-cases, 
istype-false, 
select_wf, 
left-endpoint_wf, 
or_wf, 
not_wf, 
list_induction, 
last-cons, 
non_neg_length, 
rless-cases, 
istype-less_than, 
last_cons, 
true_wf, 
rleq_wf, 
add-subtract-cancel, 
istype-universe, 
less_than_wf, 
add-swap, 
istype-le, 
add-member-int_seg2, 
select_cons_tl, 
rleq_transitivity, 
add-is-int-iff, 
nat_plus_wf, 
req-iff-rsub-is-0, 
rsub_wf, 
rless-implies-rless, 
real_polynomial_null, 
real_term_value_sub_lemma, 
real_term_value_var_lemma, 
real_term_value_const_lemma, 
int_formula_prop_eq_lemma, 
intformeq_wf, 
imax_nat_plus, 
imax_wf, 
mul_nat_plus, 
int_term_value_mul_lemma, 
itermMultiply_wf, 
multiply-is-int-iff, 
multiply_nat_plus, 
rless_transitivity2, 
less_than_transitivity1, 
rleq-int-fractions, 
imax_ub, 
rleq_functionality_wrt_implies, 
rleq_weakening_equal, 
less_than_transitivity2, 
nat_plus_subtype_nat, 
mul_preserves_le, 
int_entire_a, 
rneq-int, 
mklist_length, 
select-mklist, 
mklist_wf, 
rless_functionality_wrt_implies, 
rsub_functionality_wrt_rleq, 
rinv_wf2, 
rmul_wf, 
rmul_preserves_rless, 
rless_functionality, 
req_transitivity, 
rmul-rinv3, 
real_term_value_mul_lemma, 
frs-increasing-non-dec, 
rleq_weakening, 
rleq_weakening_rless, 
decidable__equal_int, 
rleq_functionality, 
req_weakening, 
rleq-int-fractions2, 
rabs_wf, 
rabs_functionality, 
rabs-of-nonneg, 
radd_wf, 
radd_functionality_wrt_rleq, 
real_term_value_add_lemma, 
radd_functionality_wrt_rless1, 
itermMinus_wf, 
rminus_wf, 
real_term_value_minus_lemma, 
rabs-rminus, 
lt_int_wf, 
assert_of_lt_int, 
add-member-int_seg1, 
nat_properties, 
int_seg_subtype_nat, 
rmul_functionality, 
rmul-rinv, 
radd_functionality, 
rminus_functionality, 
rminus-int, 
radd-preserves-rless, 
req_inversion, 
radd-int
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation_alt, 
sqequalHypSubstitution, 
productElimination, 
thin, 
cut, 
introduction, 
extract_by_obid, 
dependent_functionElimination, 
hypothesisEquality, 
setElimination, 
rename, 
independent_functionElimination, 
setIsType, 
universeIsType, 
hypothesis, 
isectElimination, 
natural_numberEquality, 
independent_isectElimination, 
sqequalRule, 
productIsType, 
applyEquality, 
lambdaEquality_alt, 
isect_memberEquality_alt, 
voidElimination, 
because_Cache, 
inhabitedIsType, 
unionElimination, 
equalityElimination, 
equalityTransitivity, 
equalitySymmetry, 
dependent_pairFormation_alt, 
equalityIstype, 
promote_hyp, 
instantiate, 
cumulativity, 
baseClosed, 
productEquality, 
applyLambdaEquality, 
hyp_replacement, 
functionIsTypeImplies, 
independent_pairFormation, 
int_eqEquality, 
approximateComputation, 
universeEquality, 
imageMemberEquality, 
imageElimination, 
closedConclusion, 
intEquality, 
equalityIsType4, 
dependent_set_memberEquality_alt, 
unionIsType, 
equalityIsType3, 
functionIsType, 
baseApply, 
pointwiseFunctionality, 
inrFormation_alt, 
equalityIsType1, 
minusEquality, 
addEquality, 
hypothesis_subsumption, 
functionEquality, 
inlFormation_alt, 
multiplyEquality, 
functionExtensionality
Latex:
\mforall{}I:Interval
    ((icompact(I)  \mwedge{}  iproper(I))
    {}\mRightarrow{}  (\mforall{}p:partition(I).  \mforall{}e:\{e:\mBbbR{}|  r0  <  e\}  .
                \mexists{}q:partition(I).  (frs-increasing(q)  \mwedge{}  nearby-partitions(e;p;q))))
Date html generated:
2019_10_29-AM-10_48_37
Last ObjectModification:
2018_12_13-PM-01_45_19
Theory : reals
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