At:
discrete equality is equivalence15
1.
T: Type
2.
EQ: {T=}
3.
EQ TT
4.
x,y:T. EQ(x,y) x = y
5.
x: T
6.
y: T
7.
z: T
8.
EQ(x,y)
9.
EQ(y,z)
EQ(x,z)
By:
CopyToEnd 4
THEN
With x (Analyze -1)
THEN
With y (Analyze -1)
THEN
CopyToEnd 4
THEN
With y (Analyze -1)
THEN
With z (Analyze -1)
THEN
CopyToEnd 4
THEN
With x (Analyze -1)
THEN
With z (Analyze -1)
Generated subgoal:
x = y
EQ(x,z)
}
T
T
x,y:T. EQ(x,y) 
