Nuprl Lemma : disjoint-union-class_wf
[Info,A,B:Type]. [X:EClass(A)]. [Y:EClass(B)]. (X + Y 
EClass(A + B))
Proof not projected
Definitions occuring in Statement :
disjoint-union-class: X + Y,
eclass: EClass(A[eo; e]),
uall: [x:A]. B[x],
member: t T,
union: left + right,
universe: Type
Definitions :
uall: [x:A]. B[x],
member: t T,
disjoint-union-class: X + Y,
so_lambda: 
x y.t[x; y],
all: x:A. B[x],
so_apply: x[s1;s2],
subtype: S 
T
Lemmas :
simple-comb-2_wf,
ifthenelse_wf,
bag-null_wf,
bag_wf,
bag-map_wf,
eclass_wf,
es-E_wf,
event-ordering+_inc,
event-ordering+_wf
\mforall{}[Info,A,B:Type]. \mforall{}[X:EClass(A)]. \mforall{}[Y:EClass(B)]. (X + Y \mmember{} EClass(A + B))
Date html generated:
2011_10_20-PM-03_38_03
Last ObjectModification:
2011_09_22-PM-07_29_09
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