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| Mirrors > Home > MPE Home > Th. List > sdomentr | Structured version Visualization version GIF version | ||
| Description: Transitivity of strict dominance and equinumerosity. Exercise 11 of [Suppes] p. 98. (Contributed by NM, 26-Oct-2003.) |
| Ref | Expression |
|---|---|
| sdomentr | ⊢ ((𝐴 ≺ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≺ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | endom 8911 | . 2 ⊢ (𝐵 ≈ 𝐶 → 𝐵 ≼ 𝐶) | |
| 2 | sdomdomtr 9034 | . 2 ⊢ ((𝐴 ≺ 𝐵 ∧ 𝐵 ≼ 𝐶) → 𝐴 ≺ 𝐶) | |
| 3 | 1, 2 | sylan2 593 | 1 ⊢ ((𝐴 ≺ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≺ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 class class class wbr 5095 ≈ cen 8876 ≼ cdom 8877 ≺ csdm 8878 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ral 3045 df-rex 3054 df-rab 3397 df-v 3440 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-br 5096 df-opab 5158 df-id 5518 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-er 8632 df-en 8880 df-dom 8881 df-sdom 8882 |
| This theorem is referenced by: sdomen2 9046 unxpdom2 9159 sucxpdom 9160 findcard3OLD 9188 fofinf1o 9241 sdomsdomcardi 9886 cardsdomel 9889 cardmin2 9914 alephnbtwn2 9985 pwsdompw 10116 infdif2 10122 fin23lem27 10241 axcclem 10370 numthcor 10407 sdomsdomcard 10473 pwcfsdom 10496 cfpwsdom 10497 inawinalem 10602 inatsk 10691 r1tskina 10695 tskuni 10696 rucALT 16158 iunmbl2 25475 dirith2 27456 erdszelem10 35192 mblfinlem1 37656 pellex 42828 rp-isfinite6 43511 harval3 43531 |
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