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At: sublist reflexive 1 1 1 2

1. T: Type
2. eq: {T=}
3. eq TT
4. x,y:T. eq(x,y) x = y
5. L: T List
6. u: T
7. v: T List
8. v(eq)v
9. eq(u,u)

if eq(u,u) true else u(eq) v fi

By: FwdThru Thm* P:. P P = true [-1]

Generated subgoal:

110. eq(u,u) = true
if eq(u,u) true else u(eq) v fi

About:
listboolbtrueifthenelseassertapply
functionuniverseequalmemberall

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