Metamath Proof Explorer


Theorem divscld

Description: Surreal division closure law. (Contributed by Scott Fenton, 16-Mar-2025)

Ref Expression
Hypotheses divscld.1 φANo
divscld.2 φBNo
divscld.3 No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
Assertion divscld Could not format assertion : No typesetting found for |- ( ph -> ( A /su B ) e. No ) with typecode |-

Proof

Step Hyp Ref Expression
1 divscld.1 φANo
2 divscld.2 φBNo
3 divscld.3 Could not format ( ph -> B =/= 0s ) : No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
4 divscl Could not format ( ( A e. No /\ B e. No /\ B =/= 0s ) -> ( A /su B ) e. No ) : No typesetting found for |- ( ( A e. No /\ B e. No /\ B =/= 0s ) -> ( A /su B ) e. No ) with typecode |-
5 1 2 3 4 syl3anc Could not format ( ph -> ( A /su B ) e. No ) : No typesetting found for |- ( ph -> ( A /su B ) e. No ) with typecode |-