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| Mirrors > Home > MPE Home > Th. List > endomtr | Structured version Visualization version GIF version | ||
| Description: Transitivity of equinumerosity and dominance. (Contributed by NM, 7-Jun-1998.) |
| Ref | Expression |
|---|---|
| endomtr | ⊢ ((𝐴 ≈ 𝐵 ∧ 𝐵 ≼ 𝐶) → 𝐴 ≼ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | endom 8985 | . 2 ⊢ (𝐴 ≈ 𝐵 → 𝐴 ≼ 𝐵) | |
| 2 | domtr 9013 | . 2 ⊢ ((𝐴 ≼ 𝐵 ∧ 𝐵 ≼ 𝐶) → 𝐴 ≼ 𝐶) | |
| 3 | 1, 2 | sylan 592 | 1 ⊢ ((𝐴 ≈ 𝐵 ∧ 𝐵 ≼ 𝐶) → 𝐴 ≼ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 class class class wbr 5103 ≈ cen 8949 ≼ cdom 8950 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5249 ax-pow 5327 ax-pr 5391 ax-un 7735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-id 5543 df-xp 5654 df-rel 5655 df-cnv 5656 df-co 5657 df-dm 5658 df-rn 5659 df-res 5660 df-ima 5661 df-fun 6530 df-fn 6531 df-f 6532 df-f1 6533 df-f1o 6535 df-en 8953 df-dom 8954 |
| This theorem is used by: cnvct 9041 xpdom1g 9072 xpdom3 9073 domunsncan 9075 domsdomtr 9110 domen1 9117 mapdom1 9140 mapdom2 9146 mapdom3 9147 hartogslem1 9514 harcard 10016 infxpenlem 10049 infpwfien 10098 alephsucdom 10115 mappwen 10148 dfac12lem2 10180 djulepw 10228 fictb 10279 cfflb 10294 canthp1lem1 10694 pwfseqlem5 10705 pwxpndom2 10707 pwdjundom 10709 gchxpidm 10711 gchhar 10721 tskinf 10811 inar1 10817 gruina 10860 rexpen 16349 mreexdomd 17770 lindsdom 22103 hauspwdom 23767 rectbntr0 25099 rabfodom 33020 snct 33224 dya2iocct 34832 karddom 35748 finminlem 37022 iccioo01 38164 pibt2 38254 poimirlem26 38478 heiborlem3 38661 pellexlem4 43771 pellexlem5 43772 safesnsupfidom1o 44355 sn1dom 44464 mpct 46130 thincciso2 50479 aacllem 50855 |
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