Nuprl Lemma : make-strict-agrees
∀[alpha:ℕ ⟶ ℕ]. ∀[n:ℕ].  ∀[i:ℕn]. ((make-strict(alpha) i) = (alpha i) ∈ ℤ) supposing strictly-increasing-seq(n;alpha)
Proof
Definitions occuring in Statement : 
make-strict: make-strict(alpha), 
strictly-increasing-seq: strictly-increasing-seq(n;s), 
int_seg: {i..j-}, 
nat: ℕ, 
uimplies: b supposing a, 
uall: ∀[x:A]. B[x], 
apply: f a, 
function: x:A ⟶ B[x], 
natural_number: $n, 
int: ℤ, 
equal: s = t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
member: t ∈ T, 
uimplies: b supposing a, 
implies: P ⇒ Q, 
all: ∀x:A. B[x], 
nat: ℕ, 
subtype_rel: A ⊆r B, 
so_lambda: λ2x.t[x], 
so_apply: x[s], 
le: A ≤ B, 
and: P ∧ Q, 
less_than': less_than'(a;b), 
false: False, 
not: ¬A, 
prop: ℙ, 
ge: i ≥ j , 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
exists: ∃x:A. B[x], 
top: Top, 
int_seg: {i..j-}, 
lelt: i ≤ j < k, 
decidable: Dec(P), 
or: P ∨ Q, 
strictly-increasing-seq: strictly-increasing-seq(n;s), 
make-strict: make-strict(alpha), 
bool: 𝔹, 
unit: Unit, 
it: ⋅, 
btrue: tt, 
uiff: uiff(P;Q), 
ifthenelse: if b then t else f fi , 
bfalse: ff, 
sq_type: SQType(T), 
guard: {T}, 
bnot: ¬bb, 
assert: ↑b, 
rev_implies: P ⇐ Q, 
iff: P ⇐⇒ Q, 
strict-inc: StrictInc, 
squash: ↓T, 
true: True
Lemmas referenced : 
int_seg_wf, 
strictly-increasing-seq_wf, 
subtype_rel_dep_function, 
nat_wf, 
int_seg_subtype_nat, 
istype-false, 
istype-nat, 
nat_properties, 
full-omega-unsat, 
intformand_wf, 
intformle_wf, 
itermConstant_wf, 
itermVar_wf, 
intformless_wf, 
istype-int, 
int_formula_prop_and_lemma, 
istype-void, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_var_lemma, 
int_formula_prop_less_lemma, 
int_formula_prop_wf, 
ge_wf, 
istype-less_than, 
int_seg_properties, 
decidable__le, 
intformnot_wf, 
int_formula_prop_not_lemma, 
istype-le, 
subtract-1-ge-0, 
decidable__lt, 
itermSubtract_wf, 
int_term_value_subtract_lemma, 
subtract_wf, 
primrec-unroll, 
lt_int_wf, 
eqtt_to_assert, 
assert_of_lt_int, 
decidable__equal_int, 
intformeq_wf, 
int_formula_prop_eq_lemma, 
eqff_to_assert, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_wf, 
bool_subtype_base, 
assert-bnot, 
iff_weakening_uiff, 
assert_wf, 
less_than_wf, 
subtract-add-cancel, 
make-strict_wf, 
squash_wf, 
true_wf, 
subtype_rel_self, 
iff_weakening_equal
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
Error :isect_memberFormation_alt, 
introduction, 
cut, 
thin, 
sqequalHypSubstitution, 
independent_functionElimination, 
hypothesis, 
dependent_functionElimination, 
hypothesisEquality, 
Error :universeIsType, 
extract_by_obid, 
isectElimination, 
natural_numberEquality, 
setElimination, 
rename, 
sqequalRule, 
Error :isect_memberEquality_alt, 
axiomEquality, 
Error :isectIsTypeImplies, 
Error :inhabitedIsType, 
applyEquality, 
Error :lambdaEquality_alt, 
intEquality, 
independent_isectElimination, 
because_Cache, 
independent_pairFormation, 
Error :lambdaFormation_alt, 
Error :functionIsType, 
intWeakElimination, 
approximateComputation, 
Error :dependent_pairFormation_alt, 
int_eqEquality, 
voidElimination, 
Error :functionIsTypeImplies, 
productElimination, 
Error :dependent_set_memberEquality_alt, 
unionElimination, 
Error :productIsType, 
equalityElimination, 
equalityTransitivity, 
equalitySymmetry, 
Error :equalityIstype, 
promote_hyp, 
instantiate, 
cumulativity, 
imageElimination, 
imageMemberEquality, 
baseClosed, 
universeEquality
Latex:
\mforall{}[alpha:\mBbbN{}  {}\mrightarrow{}  \mBbbN{}].  \mforall{}[n:\mBbbN{}].
    \mforall{}[i:\mBbbN{}n].  ((make-strict(alpha)  i)  =  (alpha  i))  supposing  strictly-increasing-seq(n;alpha)
Date html generated:
2019_06_20-PM-02_57_20
Last ObjectModification:
2019_02_06-PM-03_51_03
Theory : continuity
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