Description: Surreal less-than relationship between division and multiplication. (Contributed by Scott Fenton, 16-Mar-2025)
Ref | Expression | ||
---|---|---|---|
Hypotheses | sltdivmuld.1 | |- ( ph -> A e. No ) |
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sltdivmuld.2 | |- ( ph -> B e. No ) |
||
sltdivmuld.3 | |- ( ph -> C e. No ) |
||
sltdivmuld.4 | |- ( ph -> 0s |
||
Assertion | sltdivmuld | |- ( ph -> ( ( A /su C ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sltdivmuld.1 | |- ( ph -> A e. No ) |
|
2 | sltdivmuld.2 | |- ( ph -> B e. No ) |
|
3 | sltdivmuld.3 | |- ( ph -> C e. No ) |
|
4 | sltdivmuld.4 | |- ( ph -> 0s |
|
5 | 4 | sgt0ne0d | |- ( ph -> C =/= 0s ) |
6 | 3 5 | recsexd | |- ( ph -> E. x e. No ( C x.s x ) = 1s ) |
7 | 1 2 3 4 6 | sltdivmulwd | |- ( ph -> ( ( A /su C ) |