Theorem ordfr 3673

Description: Epsilon is well-founded on an ordinal class.

Assertion

Ref	Expression
ordfr	|- (Ord A -> _E Fr A)

Proof of Theorem ordfr

Step	Hyp	Ref	Expression
1		ordwe 3671	. 2 |- (Ord A -> _E We A)
2		wefr 3648	. 2 |- ( _E We A -> _E Fr A)
3	1, 2	syl 12	1 |- (Ord A -> _E Fr A)

Syntax hints:   -> wi 3   _E cep 3581   Fr wfr 3623   We wwe 3624  Ord word 3656

This theorem is referenced by:  ordirr 3676  tz7.7 3684  onfr 3702  bnj580 13301  bnj1053 13396  bnj1071 13402

This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7

This theorem depends on definitions:  df-bi 164  df-an 242  df-we 3644  df-ord 3660

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