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| Description: Transitivity of equinumerosity and dominance. |
| Ref | Expression |
|---|---|
| endomtr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | domtr 3320 |
. 2
| |
| 2 | endom 3289 |
. 2
| |
| 3 | 1, 2 | sylan 343 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: undom 3342 xpdom1 3346 xpdom3 3347 ensdomtr 3372 domsdomtr 3374 domen1 3377 mapdom1 3387 mapdom2 3389 php 3409 onomeneq 3414 0sdom1dom 3420 isfinite1 3425 carddomi 3641 cdadom2 3728 xpnnen 4927 infxpidmlem1 4933 infdif 4948 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-id 2125 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fo 2436 df-f1o 2437 df-en 3274 df-dom 3275 |