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| Mirrors > Home > MPE Home > Th. List > brrelex1i | Structured version Visualization version GIF version | ||
| Description: The first argument of a binary relation exists. (An artifact of our ordered pair definition.) (Contributed by NM, 4-Jun-1998.) |
| Ref | Expression |
|---|---|
| brrelexi.1 | ⊢ Rel 𝑅 |
| Ref | Expression |
|---|---|
| brrelex1i | ⊢ (𝐴𝑅𝐵 → 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brrelexi.1 | . 2 ⊢ Rel 𝑅 | |
| 2 | brrelex1 5675 | . 2 ⊢ ((Rel 𝑅 ∧ 𝐴𝑅𝐵) → 𝐴 ∈ V) | |
| 3 | 1, 2 | mpan 690 | 1 ⊢ (𝐴𝑅𝐵 → 𝐴 ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2113 Vcvv 3438 class class class wbr 5096 Rel wrel 5627 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 ax-sep 5239 ax-nul 5249 ax-pr 5375 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-ral 3050 df-rex 3059 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-br 5097 df-opab 5159 df-xp 5628 df-rel 5629 |
| This theorem is referenced by: nprrel 5681 opeliunxp2 5785 ideqg 5798 issetid 5801 dffv2 6927 brfvopabrbr 6936 brrpssg 7668 opeliunxp2f 8150 brtpos2 8172 brdomg 8893 ctex 8898 isfi 8910 domssr 8934 domdifsn 8986 xpdom2 8998 xpdom1g 9000 sbth 9023 sdomirr 9040 sdomdif 9051 fodomr 9054 pwdom 9055 xpen 9066 pwen 9076 sbthfi 9121 sucdom2 9125 fineqv 9165 infsdomnn 9199 relprcnfsupp 9265 fsuppssov1 9285 fsuppunbi 9290 mapfien2 9310 harword 9466 brwdom 9470 domwdom 9477 brwdom3i 9486 unwdomg 9487 xpwdomg 9488 infdifsn 9564 ac10ct 9942 inffien 9971 djuen 10078 djudom2 10092 djufi 10095 cdainflem 10096 djulepw 10101 infdjuabs 10113 infunabs 10114 infmap2 10125 cfslb2n 10176 fin4i 10206 isfin5 10207 isfin6 10208 fin4en1 10217 isfin4p1 10223 isfin32i 10273 fin45 10300 fin56 10301 fin67 10303 hsmexlem1 10334 hsmexlem3 10336 axcc3 10346 ttukeylem1 10417 brdom3 10436 iundom2g 10448 iundom 10450 gchi 10533 engch 10537 gchdomtri 10538 fpwwe2lem5 10544 fpwwe2lem6 10545 fpwwe2lem8 10547 gchdjuidm 10577 gchpwdom 10579 prcdnq 10902 reexALT 12895 hasheni 14269 hashdomi 14301 climcl 15420 climi 15431 climrlim2 15468 climrecl 15504 climge0 15505 iseralt 15606 climfsum 15741 structex 17075 issubc 17757 pmtrfv 19379 dprdval 19932 frgpcyg 21526 lindff 21768 lindfind 21769 f1lindf 21775 lindfmm 21780 lsslindf 21783 lbslcic 21794 psrbaglesupp 21876 hauspwdom 23443 refbas 23452 refssex 23453 reftr 23456 refun0 23457 ovoliunnul 25462 dvle 25966 cyclnspth 29823 hlimi 31212 gsumhashmul 33099 extdgval 33759 finextfldext 33770 usgrgt2cycl 35273 brsset 36030 brbigcup 36039 elfix2 36045 brcolinear2 36201 isfne 36482 refssfne 36501 bj-epelg 37212 bj-ideqb 37303 bj-opelidb1ALT 37310 ovoliunnfl 37802 voliunnfl 37804 volsupnfl 37805 brabg2 37857 heiborlem4 37954 isrngo 38037 isdivrngo 38090 brssr 38693 issetssr 38695 fphpd 43000 ctbnfien 43002 sdomne0 43596 climd 45858 climuzlem 45929 rlimdmafv 47365 rlimdmafv2 47446 imasubc 49338 imassc 49340 imaid 49341 imaf1co 49342 imasubc3 49343 fuco112 49516 fuco111 49517 fuco21 49523 fucoid 49535 |
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