{ 
[A:Id List]. [W:{a:Id| (a 
A)} List List]. (two-intersection(A;W) 
) }
{ Proof }
Definitions occuring in Statement :
two-intersection: two-intersection(A;W),
Id: Id,
uall: [x:A]. B[x],
prop: ,
member: t T,
set: {x:A| B[x]} ,
list: type List,
l_member: (x l)
Definitions :
uall: [x:A]. B[x],
member: t T,
prop: ,
two-intersection: two-intersection(A;W),
exists: 
x:A. B[x],
and: P 
Q,
so_lambda: 
x.t[x],
so_apply: x[s]
Lemmas :
l_all_wf2,
l_member_wf,
Id_wf
\mforall{}[A:Id List]. \mforall{}[W:\{a:Id| (a \mmember{} A)\} List List]. (two-intersection(A;W) \mmember{} \mBbbP{})
Date html generated:
2011_08_16-AM-10_00_22
Last ObjectModification:
2011_06_18-AM-08_58_21
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