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Description: Define the strict dominance relation. Alternate possible definitions are derived as brsdom and brsdom2 . Definition 3 of Suppes p. 97. (Contributed by NM, 31-Mar-1998)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-sdom | |- ~< = ( ~<_ \ ~~ ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | csdm | |- ~< |
|
| 1 | cdom | |- ~<_ |
|
| 2 | cen | |- ~~ |
|
| 3 | 1 2 | cdif | |- ( ~<_ \ ~~ ) |
| 4 | 0 3 | wceq | |- ~< = ( ~<_ \ ~~ ) |