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| Mirrors > Home > MPE Home > Th. List > relsdom | Structured version Visualization version GIF version | ||
| Description: Strict dominance is a relation. (Contributed by NM, 31-Mar-1998.) |
| Ref | Expression |
|---|---|
| relsdom | ⊢ Rel ≺ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reldom 8887 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5762 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8884 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5725 | . . 3 ⊢ (Rel ≺ ↔ Rel ( ≼ ∖ ≈ )) |
| 5 | 2, 4 | sylibr 234 | . 2 ⊢ (Rel ≼ → Rel ≺ ) |
| 6 | 1, 5 | ax-mp 5 | 1 ⊢ Rel ≺ |
| Colors of variables: wff setvar class |
| Syntax hints: ∖ cdif 3896 Rel wrel 5627 ≈ cen 8878 ≼ cdom 8879 ≺ csdm 8880 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-v 3440 df-dif 3902 df-ss 3916 df-opab 5159 df-xp 5628 df-rel 5629 df-dom 8883 df-sdom 8884 |
| This theorem is referenced by: domdifsn 8986 sdomirr 9040 sdomdif 9051 sucdom2 9125 0sdom1dom 9144 1sdom2dom 9152 unxpdom 9157 unxpdom2 9158 sucxpdom 9159 isfinite2 9196 fin2inf 9202 fodomfir 9226 card2on 9457 djuxpdom 10094 djufi 10095 infdif 10116 cfslb2n 10176 isfin5 10207 isfin6 10208 isfin4p1 10223 fin56 10301 fin67 10303 sdomsdomcard 10468 gchi 10533 canthp1lem1 10561 canthp1lem2 10562 canthp1 10563 frgpnabl 19802 fphpd 43000 sdomne0 43596 sdomne0d 43597 |
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