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At: sublist tail 1 1 1 1

1. T: Type
2. Discrete{T}
3. eq: {T}
4. u: T
5. v: T List
6. f1: {T=}
7. f2: True

xv.if eq(x,u) true else x(eq) v fi

By: Inst Thm* eq:{T=}, f:{T}, x,y:T. eq(x,y) f(x,y) [T;f1;eq]

Generated subgoal:

18. x,y:T. f1(x,y) eq(x,y)
xv.if eq(x,u) true else x(eq) v fi

About:
listbtrueifthenelseassertapplyuniversetrue

(12steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc