Metamath Proof Explorer

Theorem bnj1071

Description: Technical lemma for bnj69 . 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 bnj1071.7 D = ω
Assertion bnj1071 n D E Fr n


Step Hyp Ref Expression
1 bnj1071.7 D = ω
2 1 bnj923 n D n ω
3 nnord n ω Ord n
4 ordfr Ord n E Fr n
5 2 3 4 3syl n D E Fr n