| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 8960 | . 2 ⊢ (𝐵 ≈ 𝐶 → 𝐵 ≼ 𝐶) | |
| 2 | sdomdomtr 9082 | . 2 ⊢ ((𝐴 ≺ 𝐵 ∧ 𝐵 ≼ 𝐶) → 𝐴 ≺ 𝐶) | |
| 3 | 1, 2 | sylan2 602 | 1 ⊢ ((𝐴 ≺ 𝐵 ∧ 𝐵 ≈ 𝐶) → 𝐴 ≺ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 class class class wbr 5100 ≈ cen 8924 ≼ cdom 8925 ≺ csdm 8926 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-pow 5322 ax-pr 5390 ax-un 7718 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-er 8678 df-en 8928 df-dom 8929 df-sdom 8930 |
| This theorem is referenced by: sdomen2 9094 unxpdom2 9204 sucxpdom 9205 fofinf1o 9275 sdomsdomcardi 9929 cardsdomel 9932 cardmin2 9957 alephnbtwn2 10028 pwsdompw 10159 infdif2 10165 fin23lem27 10285 axcclem 10414 numthcor 10451 sdomsdomcard 10517 pwcfsdom 10541 cfpwsdom 10542 inawinalem 10647 inatsk 10736 r1tskina 10740 tskuni 10741 rucALT 16262 iunmbl2 25619 dirith2 27592 erdszelem10 35550 mblfinlem1 38156 pellex 43412 rp-isfinite6 44094 harval3 44114 |
| Copyright terms: Public domain | W3C validator |