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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 8893 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5765 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8890 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5728 | . . 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 3899 Rel wrel 5630 ≈ cen 8884 ≼ cdom 8885 ≺ csdm 8886 |
| 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 3443 df-dif 3905 df-ss 3919 df-opab 5162 df-xp 5631 df-rel 5632 df-dom 8889 df-sdom 8890 |
| This theorem is referenced by: domdifsn 8992 sdomirr 9046 sdomdif 9057 sucdom2 9131 0sdom1dom 9150 1sdom2dom 9158 unxpdom 9163 unxpdom2 9164 sucxpdom 9165 isfinite2 9202 fin2inf 9208 fodomfir 9232 card2on 9463 djuxpdom 10100 djufi 10101 infdif 10122 cfslb2n 10182 isfin5 10213 isfin6 10214 isfin4p1 10229 fin56 10307 fin67 10309 sdomsdomcard 10474 gchi 10539 canthp1lem1 10567 canthp1lem2 10568 canthp1 10569 frgpnabl 19808 fphpd 43125 sdomne0 43721 sdomne0d 43722 |
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