Metamath Proof Explorer


Theorem divscan2wd

Description: A weak cancellation law for surreal division. (Contributed by Scott Fenton, 13-Mar-2025)

Ref Expression
Hypotheses divscan2wd.1 φANo
divscan2wd.2 φBNo
divscan2wd.3 No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
divscan2wd.4 No typesetting found for |- ( ph -> E. x e. No ( B x.s x ) = 1s ) with typecode |-
Assertion divscan2wd Could not format assertion : No typesetting found for |- ( ph -> ( B x.s ( A /su B ) ) = A ) with typecode |-

Proof

Step Hyp Ref Expression
1 divscan2wd.1 φANo
2 divscan2wd.2 φBNo
3 divscan2wd.3 Could not format ( ph -> B =/= 0s ) : No typesetting found for |- ( ph -> B =/= 0s ) with typecode |-
4 divscan2wd.4 Could not format ( ph -> E. x e. No ( B x.s x ) = 1s ) : No typesetting found for |- ( ph -> E. x e. No ( B x.s x ) = 1s ) with typecode |-
5 eqid Could not format ( A /su B ) = ( A /su B ) : No typesetting found for |- ( A /su B ) = ( A /su B ) with typecode |-
6 1 2 3 4 divsclwd Could not format ( ph -> ( A /su B ) e. No ) : No typesetting found for |- ( ph -> ( A /su B ) e. No ) with typecode |-
7 1 6 2 3 4 divsmulwd Could not format ( ph -> ( ( A /su B ) = ( A /su B ) <-> ( B x.s ( A /su B ) ) = A ) ) : No typesetting found for |- ( ph -> ( ( A /su B ) = ( A /su B ) <-> ( B x.s ( A /su B ) ) = A ) ) with typecode |-
8 5 7 mpbii Could not format ( ph -> ( B x.s ( A /su B ) ) = A ) : No typesetting found for |- ( ph -> ( B x.s ( A /su B ) ) = A ) with typecode |-