Metamath Proof Explorer


Theorem sltmul1d

Description: Multiplication of both sides of surreal less-than by a positive number. (Contributed by Scott Fenton, 10-Mar-2025)

Ref Expression
Hypotheses sltmul12d.1 φANo
sltmul12d.2 φBNo
sltmul12d.3 φCNo
sltmul12d.4 No typesetting found for |- ( ph -> 0s
Assertion sltmul1d Could not format assertion : No typesetting found for |- ( ph -> ( A ( A x.s C )

Proof

Step Hyp Ref Expression
1 sltmul12d.1 φANo
2 sltmul12d.2 φBNo
3 sltmul12d.3 φCNo
4 sltmul12d.4 Could not format ( ph -> 0s 0s
5 1 2 3 4 sltmul2d Could not format ( ph -> ( A ( C x.s A ) ( A ( C x.s A )
6 1 3 mulscomd Could not format ( ph -> ( A x.s C ) = ( C x.s A ) ) : No typesetting found for |- ( ph -> ( A x.s C ) = ( C x.s A ) ) with typecode |-
7 2 3 mulscomd Could not format ( ph -> ( B x.s C ) = ( C x.s B ) ) : No typesetting found for |- ( ph -> ( B x.s C ) = ( C x.s B ) ) with typecode |-
8 6 7 breq12d Could not format ( ph -> ( ( A x.s C ) ( C x.s A ) ( ( A x.s C ) ( C x.s A )
9 5 8 bitr4d Could not format ( ph -> ( A ( A x.s C ) ( A ( A x.s C )