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At: list all all 1 2 2 1 1 1 2 1 1

1. T: Type
2. eq: {T=}
3. eq TT
4. P: TType
5. L: T List
6. u: T
7. v: T List
8. (x:{x:T| x(eq) v }. P(x)) xv.P(x)
9. eq(u,u) = false
10. eq(u,u) u = u

u(eq) v

By:
HypSubst -2 -1
THEN
AbReduce 0


Generated subgoal:

110. false u = u
u(eq) v

About:
listboolbfalseassertsetapply
functionuniverseequalmemberimplies
all

(26steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc