Nuprl Lemma : poset-cat_wf
∀[J:Cname List]. (poset-cat(J) ∈ SmallCategory)
Proof
Definitions occuring in Statement : 
poset-cat: poset-cat(J)
, 
coordinate_name: Cname
, 
small-category: SmallCategory
, 
list: T List
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
poset-cat: poset-cat(J)
, 
small-category: SmallCategory
, 
so_lambda: λ2x.t[x]
, 
name-morph: name-morph(I;J)
, 
subtype_rel: A ⊆r B
, 
so_apply: x[s]
, 
all: ∀x:A. B[x]
, 
prop: ℙ
, 
implies: P 
⇒ Q
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
rev_uimplies: rev_uimplies(P;Q)
, 
uimplies: b supposing a
, 
nameset: nameset(L)
, 
sq_stable: SqStable(P)
, 
squash: ↓T
, 
coordinate_name: Cname
, 
int_upper: {i...}
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
false: False
, 
not: ¬A
, 
top: Top
, 
le: A ≤ B
, 
spreadn: spread4, 
cand: A c∧ B
, 
assert: ↑b
, 
sq_type: SQType(T)
, 
guard: {T}
, 
ifthenelse: if b then t else f fi 
, 
btrue: tt
, 
iff: P 
⇐⇒ Q
, 
rev_implies: P 
⇐ Q
, 
bfalse: ff
, 
true: True
Lemmas referenced : 
list_wf, 
coordinate_name_wf, 
name-morph_wf, 
nil_wf, 
all_wf, 
nameset_wf, 
assert_wf, 
le_int_wf, 
extd-nameset_subtype_int, 
assert_witness, 
assert_of_le_int, 
sq_stable__l_member, 
decidable__equal-coordinate_name, 
sq_stable__le, 
decidable__le, 
le_wf, 
l_member_wf, 
satisfiable-full-omega-tt, 
intformnot_wf, 
intformle_wf, 
itermVar_wf, 
int_formula_prop_not_lemma, 
int_formula_prop_le_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
intformand_wf, 
int_formula_prop_and_lemma, 
equal_wf, 
bnot_wf, 
not_wf, 
bool_cases, 
subtype_base_sq, 
bool_wf, 
bool_subtype_base, 
eqtt_to_assert, 
eqff_to_assert, 
iff_transitivity, 
iff_weakening_uiff, 
assert_of_bnot
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
dependent_set_memberEquality, 
sqequalHypSubstitution, 
hypothesis, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry, 
extract_by_obid, 
isectElimination, 
thin, 
dependent_pairEquality, 
hypothesisEquality, 
lambdaEquality, 
applyEquality, 
setElimination, 
rename, 
because_Cache, 
independent_pairEquality, 
independent_functionElimination, 
productElimination, 
independent_isectElimination, 
dependent_functionElimination, 
lambdaFormation, 
imageMemberEquality, 
baseClosed, 
imageElimination, 
natural_numberEquality, 
unionElimination, 
dependent_pairFormation, 
int_eqEquality, 
intEquality, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
computeAll, 
independent_pairFormation, 
productEquality, 
functionEquality, 
functionExtensionality, 
cumulativity, 
universeEquality, 
instantiate, 
impliesFunctionality, 
equalityElimination
Latex:
\mforall{}[J:Cname  List].  (poset-cat(J)  \mmember{}  SmallCategory)
Date html generated:
2017_10_05-AM-10_27_42
Last ObjectModification:
2017_07_28-AM-11_23_15
Theory : cubical!sets
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