At: assert subst mentions trace 2 1 1 1
1. True
2. u: Label
Term
3. v: (Label
Term) List
4. subst_mentions_trace(v) 
(
i:
||v||. mentions_trace(2of(v[i])))
5. subst_mentions_trace(v) 
(
i:
||v||. mentions_trace(2of(v[i])))
6. i:
(||v||+1)
7. mentions_trace(2of(v[(i-1)]))
8.
i = 0
subst_mentions_trace(v)
By:
BackThruSomeHyp
THEN
AutoInstConcl []
Generated subgoals:None
About: