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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 8894 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5766 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8891 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5729 | . . 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 3887 Rel wrel 5631 ≈ cen 8885 ≼ cdom 8886 ≺ csdm 8887 |
| 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-v 3432 df-dif 3893 df-ss 3907 df-opab 5149 df-xp 5632 df-rel 5633 df-dom 8890 df-sdom 8891 |
| This theorem is referenced by: domdifsn 8993 sdomirr 9047 sdomdif 9058 sucdom2 9132 0sdom1dom 9151 1sdom2dom 9159 unxpdom 9164 unxpdom2 9165 sucxpdom 9166 isfinite2 9203 fin2inf 9209 fodomfir 9233 card2on 9464 djuxpdom 10103 djufi 10104 infdif 10125 cfslb2n 10185 isfin5 10216 isfin6 10217 isfin4p1 10232 fin56 10310 fin67 10312 sdomsdomcard 10477 gchi 10542 canthp1lem1 10570 canthp1lem2 10571 canthp1 10572 frgpnabl 19845 fphpd 43266 sdomne0 43862 sdomne0d 43863 |
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