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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 8927 | . 2 ⊢ (𝐵 ≈ 𝐶 → 𝐵 ≼ 𝐶) | |
| 2 | sdomdomtr 9051 | . 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 5102 ≈ cen 8892 ≼ cdom 8893 ≺ csdm 8894 |
| 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 5246 ax-nul 5256 ax-pow 5315 ax-pr 5382 ax-un 7691 |
| 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 3403 df-v 3446 df-dif 3914 df-un 3916 df-in 3918 df-ss 3928 df-nul 4293 df-if 4485 df-pw 4561 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-br 5103 df-opab 5165 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-fun 6501 df-fn 6502 df-f 6503 df-f1 6504 df-fo 6505 df-f1o 6506 df-er 8648 df-en 8896 df-dom 8897 df-sdom 8898 |
| This theorem is referenced by: sdomen2 9063 unxpdom2 9177 sucxpdom 9178 findcard3OLD 9206 fofinf1o 9259 sdomsdomcardi 9900 cardsdomel 9903 cardmin2 9928 alephnbtwn2 10001 pwsdompw 10132 infdif2 10138 fin23lem27 10257 axcclem 10386 numthcor 10423 sdomsdomcard 10489 pwcfsdom 10512 cfpwsdom 10513 inawinalem 10618 inatsk 10707 r1tskina 10711 tskuni 10712 rucALT 16174 iunmbl2 25434 dirith2 27415 erdszelem10 35160 mblfinlem1 37624 pellex 42796 rp-isfinite6 43480 harval3 43500 |
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