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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 8945 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5802 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8942 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5764 | . . 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 3902 Rel wrel 5666 ≈ cen 8936 ≼ cdom 8937 ≺ csdm 8938 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-v 3457 df-dif 3908 df-ss 3922 df-opab 5174 df-xp 5667 df-rel 5668 df-dom 8941 df-sdom 8942 |
| This theorem is used by: domdifsn 9044 sdomirr 9098 sdomdif 9109 sucdom2 9183 0sdom1dom 9202 1sdom2dom 9210 unxpdom 9215 unxpdom2 9216 sucxpdom 9217 isfinite2 9254 fin2inf 9260 fodomfir 9283 card2on 9512 djuxpdom 10174 djufi 10175 infdif 10196 cfslb2n 10256 isfin5 10287 isfin6 10288 isfin4p1 10303 fin56 10381 fin67 10383 sdomsdomcard 10548 gchi 10613 canthp1lem1 10641 canthp1lem2 10642 canthp1 10643 frgpnabl 19949 kardsdom 35583 fphpd 43571 sdomne0 44167 sdomne0d 44168 |
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