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| Description: Define the strict dominance relation. Alternate possible definitions are derived as brsdom 4381 and brsdom2 4461. Definition 3 of [Suppes] p. 97. |
| Ref | Expression |
|---|---|
| df-sdom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | csdm 4366 |
. 2
| |
| 2 | cdom 4365 |
. . 3
| |
| 3 | cen 4364 |
. . 3
| |
| 4 | 2, 3 | cdif 2044 |
. 2
|
| 5 | 1, 4 | wceq 956 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: relsdom 4374 brsdom 4381 dfdom2 4384 dfsdom2 4460 |