Description: Existential Instantiation. Virtual deduction form of exlimexi . (Contributed by Alan Sare, 21-Apr-2013) (Proof modification is discouraged.) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | exinst.1 | |
|
exinst.2 | |
||
Assertion | exinst | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exinst.1 | |
|
2 | exinst.2 | |
|
3 | 2 | dfvd2i | |
4 | 1 3 | exlimexi | |