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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 8962 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5797 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8959 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5758 | . . 3 ⊢ (Rel ≺ ↔ Rel ( ≼ ∖ ≈ )) |
| 5 | 2, 4 | sylibr 237 | . 2 ⊢ (Rel ≼ → Rel ≺ ) |
| 6 | 1, 5 | ax-mp 5 | 1 ⊢ Rel ≺ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∖ cdif 3896 Rel wrel 5660 ≈ cen 8953 ≼ cdom 8954 ≺ csdm 8955 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-v 3452 df-dif 3902 df-ss 3916 df-opab 5168 df-xp 5661 df-rel 5662 df-dom 8958 df-sdom 8959 |
| This theorem is used by: domdifsn 9062 sdomirr 9116 sdomdif 9127 sucdom2 9201 0sdom1dom 9220 1sdom2dom 9228 unxpdom 9233 unxpdom2 9234 sucxpdom 9235 isfinite2 9272 fin2inf 9278 fodomfir 9301 card2on 9530 djuxpdom 10210 djufi 10211 infdif 10232 cfslb2n 10292 isfin5 10323 isfin6 10324 isfin4p1 10339 fin56 10417 fin67 10419 sdomsdomcard 10590 gchi 10655 canthp1lem1 10683 canthp1lem2 10684 canthp1 10685 frgpnabl 20025 kardsdom 35718 fphpd 43671 sdomne0 44267 sdomne0d 44268 |
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