Nuprl Lemma : es-interface-union_wf
∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)].  (X+Y ∈ EClass(A + B))
Proof
Definitions occuring in Statement : 
es-interface-union: X+Y
, 
eclass: EClass(A[eo; e])
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
union: left + right
, 
universe: Type
Lemmas : 
eclass-compose2_wf, 
eq_int_wf, 
bag-size_wf, 
nat_wf, 
bool_wf, 
eqtt_to_assert, 
assert_of_eq_int, 
single-bag_wf, 
bag-only_wf2, 
single-valued-bag-if-le1, 
le_weakening, 
decidable__lt, 
false_wf, 
le_antisymmetry_iff, 
add_functionality_wrt_le, 
add-zero, 
le-add-cancel, 
eqff_to_assert, 
equal_wf, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_subtype_base, 
assert-bnot, 
neg_assert_of_eq_int, 
not-equal-2, 
empty-bag_wf, 
bag_wf, 
eclass_wf, 
es-E_wf, 
event-ordering+_subtype, 
event-ordering+_wf
Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].    (X+Y  \mmember{}  EClass(A  +  B))
Date html generated:
2015_07_20-PM-03_19_12
Last ObjectModification:
2015_01_27-PM-10_22_39
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