(14steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc

At: not is member remove lemma 1

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

x(eq) remove(eq;y;L)

By:
ListInd 5
THEN
AbReduce 0


Generated subgoal:

16. eq(x,y)
7. u: T
8. v: T List
9. x(eq) v x(eq) remove(eq;y;v)
10. if eq(x,u) true else x(eq) v fi
x(eq) if eq(y,u) v else u.remove(eq;y;v) fi

About:
listconsifthenelseassertapplyuniverse

(14steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc