| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Strict dominance is transitive. Theorem 21(iii) of [Suppes] p. 97. |
| Ref | Expression |
|---|---|
| sdomtr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sdomex 4618 |
. . . 4
| |
| 2 | 1 | pm3.27d 323 |
. . 3
|
| 3 | sdomdomtr 4614 |
. . . 4
| |
| 4 | sdomdom 4527 |
. . . 4
| |
| 5 | 3, 4 | sylan2i 467 |
. . 3
|
| 6 | 2, 5 | syl 10 |
. 2
|
| 7 | 6 | anabsi7 500 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sdomn2lp 4620 domsdomtr 4621 2pwuninel 4632 2pwne 4634 alephordi 5024 omsubsdomlem2 11441 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-9 1001 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-rep 2767 ax-sep 2777 ax-pow 2818 ax-pr 2855 ax-un 3089 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-3an 783 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-ral 1695 df-rex 1696 df-v 1858 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-pw 2459 df-sn 2470 df-pr 2471 df-op 2474 df-uni 2570 df-br 2693 df-opab 2741 df-id 2913 df-xp 3265 df-rel 3266 df-cnv 3267 df-co 3268 df-dm 3269 df-rn 3270 df-res 3271 df-ima 3272 df-fun 3273 df-fn 3274 df-f 3275 df-f1 3276 df-fo 3277 df-f1o 3278 df-er 4401 df-en 4509 df-dom 4510 df-sdom 4511 |