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Lemmas
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3
jlc
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At:
append
functionality
wrt
list
iso
1
1.
T:
Type
2.
L1:
T List
3.
L2:
T List
4.
eq1:
{T
}
5.
eq1
T
T
6.
x:T. eq1(x,x)
7.
x,y:T. eq1(x,y)
eq1(y,x)
8.
x,y,z:T. eq1(x,y)
eq1(y,z)
eq1(x,z)
9.
eq2:
{T
}
10.
eq2
T
T
11.
x:T. eq2(x,x)
12.
x,y:T. eq2(x,y)
eq2(y,x)
13.
x,y,z:T. eq2(x,y)
eq2(y,z)
eq2(x,z)
14.
eq3:
{T
}
15.
eq3
T
T
16.
x:T. eq3(x,x)
17.
x,y:T. eq3(x,y)
eq3(y,x)
18.
x,y,z:T. eq3(x,y)
eq3(y,z)
eq3(x,z)
19.
L3:
T List
20.
L4:
T List
21.
Discrete{T}
22.
eq1 = eq2
{T
}
23.
eq2 = eq3
{T
}
24.
L1(~eq1)L2
25.
L3(~eq2)L4
(L1 @ L3)(~eq3)(L2 @ L4)
By:
HypSubst 22 24 THENA Equivalence -1 THEN HypSubst 23 24 THENA Equivalence -1 THEN HypSubst 23 25 THENA Equivalence -1
THEN
RenameVar `eq' 14
THEN
OnHyps [23;22;13;12;11;10;9;8;7;6;5;4] (
i.Thin i)
Generated subgoal:
1
4.
eq:
{T
}
5.
eq
T
T
6.
x:T. eq(x,x)
7.
x,y:T. eq(x,y)
eq(y,x)
8.
x,y,z:T. eq(x,y)
eq(y,z)
eq(x,z)
9.
L3:
T List
10.
L4:
T List
11.
Discrete{T}
12.
L1(~eq)L2
13.
L3(~eq)L4
(L1 @ L3)(~eq)(L2 @ L4)
About:
(5steps)
PrintForm
Definitions
Lemmas
list
3
jlc
Sections
Support(jlc)
Doc