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Related theorems GIF version |
| Description: Define the strict dominance relation. Alternate possible definitions are derived as brsdom 4387 and brsdom2 4467. Definition 3 of [Suppes] p. 97. |
| Ref | Expression |
|---|---|
| df-sdom | ⊢ ≺ = ( ≼ ∖ ≈ ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | csdm 4372 | . 2 class ≺ | |
| 2 | cdom 4371 | . . 3 class ≼ | |
| 3 | cen 4370 | . . 3 class ≈ | |
| 4 | 2, 3 | cdif 2047 | . 2 class ( ≼ ∖ ≈ ) |
| 5 | 1, 4 | wceq 958 | 1 wff ≺ = ( ≼ ∖ ≈ ) |
| Colors of variables: wff set class |
| This definition is referenced by: relsdom 4380 brsdom 4387 dfdom2 4390 dfsdom2 4466 |