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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 8899 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5771 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8896 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5734 | . . 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 3886 Rel wrel 5636 ≈ cen 8890 ≼ cdom 8891 ≺ csdm 8892 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3431 df-dif 3892 df-ss 3906 df-opab 5148 df-xp 5637 df-rel 5638 df-dom 8895 df-sdom 8896 |
| This theorem is referenced by: domdifsn 8998 sdomirr 9052 sdomdif 9063 sucdom2 9137 0sdom1dom 9156 1sdom2dom 9164 unxpdom 9169 unxpdom2 9170 sucxpdom 9171 isfinite2 9208 fin2inf 9214 fodomfir 9238 card2on 9469 djuxpdom 10108 djufi 10109 infdif 10130 cfslb2n 10190 isfin5 10221 isfin6 10222 isfin4p1 10237 fin56 10315 fin67 10317 sdomsdomcard 10482 gchi 10547 canthp1lem1 10575 canthp1lem2 10576 canthp1 10577 frgpnabl 19850 fphpd 43244 sdomne0 43840 sdomne0d 43841 |
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