Metamath Proof Explorer


Theorem madeno

Description: An element of a made set is a surreal. (Contributed by Scott Fenton, 27-Feb-2026)

Ref Expression
Assertion madeno
|- ( A e. ( _Made ` B ) -> A e. No )

Proof

Step Hyp Ref Expression
1 madessno
 |-  ( _Made ` B ) C_ No
2 1 sseli
 |-  ( A e. ( _Made ` B ) -> A e. No )