| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 8955 | . 2 ⊢ Rel ≼ | |
| 2 | reldif 5804 | . . 3 ⊢ (Rel ≼ → Rel ( ≼ ∖ ≈ )) | |
| 3 | df-sdom 8952 | . . . 4 ⊢ ≺ = ( ≼ ∖ ≈ ) | |
| 4 | 3 | releqi 5766 | . . 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 3903 Rel wrel 5668 ≈ cen 8946 ≼ cdom 8947 ≺ csdm 8948 |
| 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 2148 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-v 3459 df-dif 3909 df-ss 3923 df-opab 5176 df-xp 5669 df-rel 5670 df-dom 8951 df-sdom 8952 |
| This theorem is used by: domdifsn 9055 sdomirr 9109 sdomdif 9120 sucdom2 9194 0sdom1dom 9213 1sdom2dom 9221 unxpdom 9226 unxpdom2 9227 sucxpdom 9228 isfinite2 9265 fin2inf 9271 fodomfir 9294 card2on 9523 djuxpdom 10185 djufi 10186 infdif 10207 cfslb2n 10267 isfin5 10298 isfin6 10299 isfin4p1 10314 fin56 10392 fin67 10394 sdomsdomcard 10563 gchi 10628 canthp1lem1 10656 canthp1lem2 10657 canthp1 10658 frgpnabl 19993 kardsdom 35636 fphpd 43620 sdomne0 44216 sdomne0d 44217 |
| Copyright terms: Public domain | W3C validator |