(13steps)
PrintForm
Definitions
Lemmas
list
3
jlc
Sections
Support(jlc)
Doc
At:
is
member
remove
lemma
1
2
2
1
1
1.
T:
Type
2.
eq:
{T=
}
3.
eq
T
T
4.
x,y:T. eq(x,y)
x = y
5.
L:
T List
6.
x:
T
7.
u:
T
8.
v:
T List
9.
eq(x,u) = false
10.
xx:
x(
eq) v
11.
M:
T List
12.
N:
T List
13.
v = (M @ (x.N)) & remove(eq;x;v) = (M @ N)
u.v = u.(M @ (x.N)) & u.remove(eq;x;v) = u.(M @ N)
By:
Analyze 0
THEN
MemberEqCD
Generated subgoals:
None
About:
(13steps)
PrintForm
Definitions
Lemmas
list
3
jlc
Sections
Support(jlc)
Doc
}
T
T
x,y:T. eq(x,y) 
x = y
u.v = u.(M @ (x.N)) & u.remove(eq;x;v) = u.(M @ N)