(19steps)
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Definitions
Lemmas
list
3
jlc
Sections
Support(jlc)
Doc
At:
is
intersection
implies
exists
element
1
1.
T:
Type
2.
eq:
{T=
}
3.
L:
T List
4.
M:
T List
5.
L
(eq)M
x:{x:T| x(
eq) L }. x(
eq) M
By:
ListInd 3
THEN
Reduce 0
Generated subgoals:
1
False
(
x:{x:T| False }. x(
eq) M)
2
5.
u:
T
6.
v:
T List
7.
v
(eq)M
(
x:{x:T| x(
eq) v }. x(
eq) M)
u(
eq) M
x
v.x(
eq) M
(
x:{x:T| if eq(x,u)
true
else x(
eq) v fi }. x(
eq) M)
About:
(19steps)
PrintForm
Definitions
Lemmas
list
3
jlc
Sections
Support(jlc)
Doc