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At:
equivalence
weakening
lemma
1
1
1.
T:
Type
2.
eq:
{T=
}
3.
eq
T
T
4.
x,y:T. eq(x,y)
x = y
5.
f:
{T
}
6.
x:
T
7.
y:
T
8.
eq(x,y)
f(x,y)
By:
FwdThru 4 [8]
THEN
Equivalence 5
Generated subgoal:
1
6.
f
T
T
7.
x:T. f(x,x)
8.
x,y:T. f(x,y)
f(y,x)
9.
x,y,z:T. f(x,y)
f(y,z)
f(x,z)
10.
x:
T
11.
y:
T
12.
eq(x,y)
13.
x = y
f(x,y)
About:
(4steps)
PrintForm
Definitions
core
3
jlc
Sections
Support(jlc)
Doc