At: rel primed vars rel vars 1 2 1 1
1. name: relname()
2. r1: Term List
3. x: Label
4. u: Term
5. v: Term List
6. (x
reduce(
t,vs. term_primed_vars(t) @ vs;nil;v)) 
(x
reduce(
t,vs. term_vars(t) @ vs;nil;v))
7. (x
term_primed_vars(u))
(x
term_vars(u))
By: BackThru
Thm*
x:Label, u:Term.
(x
term_primed_vars(u)) 
(x
term_vars(u))
Generated subgoals:None
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