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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 9006 | . 2 ⊢ (𝐴 ≈ 𝐵 → 𝐴 ≼ 𝐵) | |
| 2 | domtr 9034 | . 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 5102 ≈ cen 8970 ≼ cdom 8971 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-pow 5326 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 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-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-br 5103 df-opab 5167 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-f1o 6545 df-en 8974 df-dom 8975 |
| This theorem is used by: cnvct 9062 xpdom1g 9093 xpdom3 9094 domunsncan 9096 domsdomtr 9131 domen1 9138 mapdom1 9161 mapdom2 9167 mapdom3 9168 hartogslem1 9536 harcard 10059 infxpenlem 10092 infpwfien 10141 alephsucdom 10158 mappwen 10191 dfac12lem2 10223 djulepw 10271 fictb 10322 cfflb 10337 canthp1lem1 10737 pwfseqlem5 10748 pwxpndom2 10750 pwdjundom 10752 gchxpidm 10754 gchhar 10764 tskinf 10854 inar1 10860 gruina 10903 rexpen 16396 mreexdomd 17823 lindsdom 22156 hauspwdom 23820 rectbntr0 25152 rabfodom 33101 snct 33305 dya2iocct 34912 soinfdom 35717 karddom 35829 finminlem 37106 iccioo01 38251 pibt2 38341 poimirlem26 38565 heiborlem3 38748 pellexlem4 43839 pellexlem5 43840 safesnsupfidom1o 44418 sn1dom 44527 mpct 46215 thincciso2 50563 aacllem 50939 |
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