Description: Technical lemma for bnj124 . This lemma may no longer be used or have become an indirect lemma of the theorem in question (i.e. a lemma of a lemma... of the theorem). (Contributed by Jonathan Ben-Naim, 3-Jun-2011) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypothesis | bnj95.1 | |- F = { <. (/) , _pred ( x , A , R ) >. } |
|
Assertion | bnj95 | |- F e. _V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | bnj95.1 | |- F = { <. (/) , _pred ( x , A , R ) >. } |
|
2 | snex | |- { <. (/) , _pred ( x , A , R ) >. } e. _V |
|
3 | 1 2 | eqeltri | |- F e. _V |