Nuprl Lemma : param-W-rel_wf
∀[P:Type]. ∀[A:P ⟶ Type]. ∀[B:p:P ⟶ A[p] ⟶ Type]. ∀[C:p:P ⟶ a:A[p] ⟶ B[p;a] ⟶ P]. ∀[par:P]. ∀[w:pW par].
(param-W-rel(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b];par;w) ∈ n:ℕ
⟶ (ℕn ⟶ pcw-step(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b]))
⟶ pcw-step(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b])
⟶ ℙ)
Proof
Definitions occuring in Statement :
param-W-rel: param-W-rel(P;p.A[p];p,a.B[p; a];p,a,b.C[p; a; b];par;w),
param-W: pW,
pcw-step: pcw-step(P;p.A[p];p,a.B[p; a];p,a,b.C[p; a; b]),
int_seg: {i..j-},
nat: ℕ,
uall: ∀[x:A]. B[x],
prop: ℙ,
so_apply: x[s1;s2;s3],
so_apply: x[s1;s2],
so_apply: x[s],
member: t ∈ T,
apply: f a,
function: x:A ⟶ B[x],
natural_number: $n,
universe: Type
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
param-W-rel: param-W-rel(P;p.A[p];p,a.B[p; a];p,a,b.C[p; a; b];par;w),
nat: ℕ,
all: ∀x:A. B[x],
implies: P ⇒ Q,
bool: 𝔹,
unit: Unit,
it: ⋅,
btrue: tt,
uiff: uiff(P;Q),
and: P ∧ Q,
uimplies: b supposing a,
less_than: a < b,
less_than': less_than'(a;b),
top: Top,
true: True,
squash: ↓T,
not: ¬A,
false: False,
prop: ℙ,
int_seg: {i..j-},
lelt: i ≤ j < k,
decidable: Dec(P),
or: P ∨ Q,
iff: P ⇐⇒ Q,
rev_implies: P ⇐ Q,
subtract: n - m,
subtype_rel: A ⊆r B,
le: A ≤ B,
pcw-step: pcw-step(P;p.A[p];p,a.B[p; a];p,a,b.C[p; a; b]),
pi2: snd(t),
isl: isl(x),
so_lambda: λ2x.t[x],
so_apply: x[s],
so_lambda: λ2x y.t[x; y],
so_apply: x[s1;s2],
so_lambda: so_lambda(x,y,z.t[x; y; z]),
so_apply: x[s1;s2;s3],
bfalse: ff,
exists: ∃x:A. B[x],
sq_type: SQType(T),
guard: {T},
bnot: ¬bb,
ifthenelse: if b then t else f fi ,
assert: ↑b,
param-W: pW
Lemmas referenced :
lt_int_wf,
eqtt_to_assert,
assert_of_lt_int,
istype-top,
istype-void,
assert_wf,
subtract_wf,
decidable__le,
istype-false,
not-le-2,
less-iff-le,
condition-implies-le,
minus-one-mul,
zero-add,
minus-one-mul-top,
nat_wf,
minus-add,
istype-int,
minus-minus,
add-associates,
add-swap,
add-commutes,
add_functionality_wrt_le,
add-zero,
le-add-cancel,
decidable__lt,
not-lt-2,
add-mul-special,
zero-mul,
le-add-cancel-alt,
le_wf,
less_than_wf,
btrue_wf,
bfalse_wf,
pcw-steprel_wf,
pcw-step_wf,
int_seg_wf,
eqff_to_assert,
bool_cases_sqequal,
subtype_base_sq,
bool_wf,
bool_subtype_base,
assert-bnot,
iff_weakening_uiff,
pcw-step-agree_wf,
param-W_wf,
istype-universe
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
Error :isect_memberFormation_alt,
introduction,
cut,
sqequalRule,
Error :lambdaEquality_alt,
natural_numberEquality,
sqequalHypSubstitution,
setElimination,
thin,
rename,
hypothesisEquality,
hypothesis,
extract_by_obid,
isectElimination,
because_Cache,
Error :inhabitedIsType,
Error :lambdaFormation_alt,
unionElimination,
equalityElimination,
productElimination,
independent_isectElimination,
lessCases,
axiomSqEquality,
Error :isect_memberEquality_alt,
independent_pairFormation,
voidElimination,
imageMemberEquality,
baseClosed,
imageElimination,
independent_functionElimination,
productEquality,
applyEquality,
Error :dependent_set_memberEquality_alt,
dependent_functionElimination,
addEquality,
Error :universeIsType,
minusEquality,
equalityTransitivity,
equalitySymmetry,
Error :productIsType,
Error :equalityIsType1,
Error :functionIsType,
Error :dependent_pairFormation_alt,
promote_hyp,
instantiate,
cumulativity,
axiomEquality,
universeEquality
Latex:
\mforall{}[P:Type]. \mforall{}[A:P {}\mrightarrow{} Type]. \mforall{}[B:p:P {}\mrightarrow{} A[p] {}\mrightarrow{} Type]. \mforall{}[C:p:P {}\mrightarrow{} a:A[p] {}\mrightarrow{} B[p;a] {}\mrightarrow{} P]. \mforall{}[par:P].
\mforall{}[w:pW par].
(param-W-rel(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b];par;w) \mmember{} n:\mBbbN{}
{}\mrightarrow{} (\mBbbN{}n {}\mrightarrow{} pcw-step(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b]))
{}\mrightarrow{} pcw-step(P;p.A[p];p,a.B[p;a];p,a,b.C[p;a;b])
{}\mrightarrow{} \mBbbP{})
Date html generated:
2019_06_20-PM-00_35_53
Last ObjectModification:
2018_10_07-PM-09_42_48
Theory : co-recursion
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