Metamath Proof Explorer


Theorem slttrieq2

Description: Trichotomy law for surreal less-than. (Contributed by Scott Fenton, 22-Apr-2012)

Ref Expression
Assertion slttrieq2 ANoBNoA=B¬A<sB¬B<sA

Proof

Step Hyp Ref Expression
1 sltso <sOrNo
2 sotrieq2 <sOrNoANoBNoA=B¬A<sB¬B<sA
3 1 2 mpan ANoBNoA=B¬A<sB¬B<sA