Metamath Proof Explorer


Theorem pw2divscan2d

Description: A cancellation law for surreal division by powers of two. (Contributed by Scott Fenton, 7-Nov-2025)

Ref Expression
Hypotheses pw2divscan2d.1 φ A No
pw2divscan2d.2 φ N 0s
Assertion pw2divscan2d Could not format assertion : No typesetting found for |- ( ph -> ( ( 2s ^su N ) x.s ( A /su ( 2s ^su N ) ) ) = A ) with typecode |-

Proof

Step Hyp Ref Expression
1 pw2divscan2d.1 φ A No
2 pw2divscan2d.2 φ N 0s
3 2sno Could not format 2s e. No : No typesetting found for |- 2s e. No with typecode |-
4 expscl Could not format ( ( 2s e. No /\ N e. NN0_s ) -> ( 2s ^su N ) e. No ) : No typesetting found for |- ( ( 2s e. No /\ N e. NN0_s ) -> ( 2s ^su N ) e. No ) with typecode |-
5 3 2 4 sylancr Could not format ( ph -> ( 2s ^su N ) e. No ) : No typesetting found for |- ( ph -> ( 2s ^su N ) e. No ) with typecode |-
6 2ne0s Could not format 2s =/= 0s : No typesetting found for |- 2s =/= 0s with typecode |-
7 expsne0 Could not format ( ( 2s e. No /\ 2s =/= 0s /\ N e. NN0_s ) -> ( 2s ^su N ) =/= 0s ) : No typesetting found for |- ( ( 2s e. No /\ 2s =/= 0s /\ N e. NN0_s ) -> ( 2s ^su N ) =/= 0s ) with typecode |-
8 3 6 2 7 mp3an12i Could not format ( ph -> ( 2s ^su N ) =/= 0s ) : No typesetting found for |- ( ph -> ( 2s ^su N ) =/= 0s ) with typecode |-
9 pw2recs Could not format ( N e. NN0_s -> E. x e. No ( ( 2s ^su N ) x.s x ) = 1s ) : No typesetting found for |- ( N e. NN0_s -> E. x e. No ( ( 2s ^su N ) x.s x ) = 1s ) with typecode |-
10 2 9 syl Could not format ( ph -> E. x e. No ( ( 2s ^su N ) x.s x ) = 1s ) : No typesetting found for |- ( ph -> E. x e. No ( ( 2s ^su N ) x.s x ) = 1s ) with typecode |-
11 1 5 8 10 divscan2wd Could not format ( ph -> ( ( 2s ^su N ) x.s ( A /su ( 2s ^su N ) ) ) = A ) : No typesetting found for |- ( ph -> ( ( 2s ^su N ) x.s ( A /su ( 2s ^su N ) ) ) = A ) with typecode |-