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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 8993 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5798 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8990 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5759 | . . 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 4048 Rel wrel 5660 ≈ cen 8984 ≼ cdom 8985 ≺ csdm 8986 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-v 3456 df-ss 3901 df-dif 4050 df-opab 5171 df-xp 5661 df-rel 5662 df-dom 8989 df-sdom 8990 |
| This theorem is used by: domdifsn 9093 sdomirr 9147 sdomdif 9158 sucdom2 9232 0sdom1dom 9251 1sdom2dom 9259 unxpdom 9264 unxpdom2 9265 sucxpdom 9266 isfinite2 9304 fin2inf 9310 fodomfir 9333 card2on 9561 djuxpdom 10277 djufi 10278 infdif 10299 cfslb2n 10359 isfin5 10390 isfin6 10391 isfin4p1 10406 fin56 10484 fin67 10486 sdomsdomcard 10657 gchi 10722 canthp1lem1 10750 canthp1lem2 10751 canthp1 10752 frgpnabl 20104 kardsdom 35904 fphpd 43969 sdomne0 44560 sdomne0d 44561 |
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