Metamath Proof Explorer


Theorem ssltex2

Description: The second argument of surreal set less than exists. (Contributed by Scott Fenton, 8-Dec-2021)

Ref Expression
Assertion ssltex2
|- ( A < B e. _V )

Proof

Step Hyp Ref Expression
1 brsslt
 |-  ( A < ( ( A e. _V /\ B e. _V ) /\ ( A C_ No /\ B C_ No /\ A. x e. A A. y e. B x 
2 simplr
 |-  ( ( ( A e. _V /\ B e. _V ) /\ ( A C_ No /\ B C_ No /\ A. x e. A A. y e. B x  B e. _V )
3 1 2 sylbi
 |-  ( A < B e. _V )