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At: equivalence weakening lemma 1 1

1. T: Type
2. eq: {T=}
3. eq TT
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:

16. f TT
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:
boolassertapplyfunctionuniverseequalmemberall

(4steps) PrintForm Definitions core 3 jlc Sections Support(jlc) Doc