Nuprl Lemma : nc-e'_wf
∀[I,J:fset(ℕ)]. ∀[i,j:ℕ]. ∀[g:J ⟶ I]. (g,i=j ∈ J+j ⟶ I+i)
Proof
Definitions occuring in Statement :
nc-e': g,i=j,
add-name: I+i,
names-hom: I ⟶ J,
fset: fset(T),
nat: ℕ,
uall: ∀[x:A]. B[x],
member: t ∈ T
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
nc-e': g,i=j,
names-hom: I ⟶ J,
names: names(I),
nat: ℕ,
all: ∀x:A. B[x],
implies: P ⇒ Q,
bool: 𝔹,
unit: Unit,
it: ⋅,
btrue: tt,
ifthenelse: if b then t else f fi ,
uiff: uiff(P;Q),
and: P ∧ Q,
uimplies: b supposing a,
subtype_rel: A ⊆r B,
so_lambda: λ2x.t[x],
so_apply: x[s],
prop: ℙ,
bfalse: ff,
exists: ∃x:A. B[x],
or: P ∨ Q,
sq_type: SQType(T),
guard: {T},
bnot: ¬bb,
assert: ↑b,
false: False
Lemmas referenced :
names_wf,
add-name_wf,
names-hom_wf,
nat_wf,
fset_wf,
eq_int_wf,
bool_wf,
eqtt_to_assert,
assert_of_eq_int,
dM_inc_wf,
trivial-member-add-name1,
fset-member_wf,
int-deq_wf,
strong-subtype-deq-subtype,
strong-subtype-set3,
le_wf,
strong-subtype-self,
eqff_to_assert,
equal_wf,
bool_cases_sqequal,
subtype_base_sq,
bool_subtype_base,
assert-bnot,
neg_assert_of_eq_int,
not-added-name,
dM-point-subtype,
f-subset-add-name
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
introduction,
cut,
sqequalHypSubstitution,
functionExtensionality,
sqequalRule,
extract_by_obid,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
axiomEquality,
equalityTransitivity,
equalitySymmetry,
isect_memberEquality,
because_Cache,
setElimination,
rename,
lambdaFormation,
unionElimination,
equalityElimination,
productElimination,
independent_isectElimination,
dependent_functionElimination,
dependent_set_memberEquality,
applyEquality,
intEquality,
lambdaEquality,
natural_numberEquality,
dependent_pairFormation,
promote_hyp,
instantiate,
cumulativity,
independent_functionElimination,
voidElimination
Latex:
\mforall{}[I,J:fset(\mBbbN{})]. \mforall{}[i,j:\mBbbN{}]. \mforall{}[g:J {}\mrightarrow{} I]. (g,i=j \mmember{} J+j {}\mrightarrow{} I+i)
Date html generated:
2017_10_05-AM-01_03_55
Last ObjectModification:
2017_07_28-AM-09_26_52
Theory : cubical!type!theory
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