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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 8979 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5793 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8976 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5754 | . . 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 5656 ≈ cen 8970 ≼ cdom 8971 ≺ csdm 8972 |
| 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 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-v 3453 df-dif 3902 df-ss 3916 df-opab 5168 df-xp 5657 df-rel 5658 df-dom 8975 df-sdom 8976 |
| This theorem is used by: domdifsn 9079 sdomirr 9133 sdomdif 9144 sucdom2 9218 0sdom1dom 9237 1sdom2dom 9245 unxpdom 9250 unxpdom2 9251 sucxpdom 9252 isfinite2 9290 fin2inf 9296 fodomfir 9319 card2on 9548 djuxpdom 10264 djufi 10265 infdif 10286 cfslb2n 10346 isfin5 10377 isfin6 10378 isfin4p1 10393 fin56 10471 fin67 10473 sdomsdomcard 10644 gchi 10709 canthp1lem1 10737 canthp1lem2 10738 canthp1 10739 frgpnabl 20089 kardsdom 35830 fphpd 43822 sdomne0 44413 sdomne0d 44414 |
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