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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 8903 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5774 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8900 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5737 | . . 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 3900 Rel wrel 5639 ≈ cen 8894 ≼ cdom 8895 ≺ csdm 8896 |
| 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 3444 df-dif 3906 df-ss 3920 df-opab 5163 df-xp 5640 df-rel 5641 df-dom 8899 df-sdom 8900 |
| This theorem is referenced by: domdifsn 9002 sdomirr 9056 sdomdif 9067 sucdom2 9141 0sdom1dom 9160 1sdom2dom 9168 unxpdom 9173 unxpdom2 9174 sucxpdom 9175 isfinite2 9212 fin2inf 9218 fodomfir 9242 card2on 9473 djuxpdom 10110 djufi 10111 infdif 10132 cfslb2n 10192 isfin5 10223 isfin6 10224 isfin4p1 10239 fin56 10317 fin67 10319 sdomsdomcard 10484 gchi 10549 canthp1lem1 10577 canthp1lem2 10578 canthp1 10579 frgpnabl 19821 fphpd 43202 sdomne0 43798 sdomne0d 43799 |
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