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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 5704 | . 2 ⊢ ((Rel 𝑅 ∧ 𝐴𝑅𝐵) → 𝐴 ∈ V) | |
| 3 | 1, 2 | mpan 703 | 1 ⊢ (𝐴𝑅𝐵 → 𝐴 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Vcvv 3451 class class class wbr 5103 Rel wrel 5656 |
| 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-ext 2733 ax-sep 5249 ax-pr 5391 |
| 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-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-xp 5657 df-rel 5658 |
| This theorem is used by: nprrel 5710 opeliunxp2 5815 ideqg 5829 issetid 5832 dffv2 6980 brfvopabrbr 6990 brrpssg 7741 opeliunxp2f 8227 brtpos2 8249 brdomg 8985 ctex 8990 isfi 9002 domssr 9026 domdifsn 9079 xpdom2 9091 xpdom1g 9093 sbth 9116 sdomirr 9133 sdomdif 9144 fodomr 9147 pwdom 9148 xpen 9159 pwen 9169 sbthfi 9214 sucdom2 9218 fineqv 9258 infsdomnn 9293 relprcnfsupp 9356 fsuppssov1 9376 fsuppunbi 9381 mapfien2 9401 harword 9557 brwdom 9561 domwdom 9568 brwdom3i 9577 unwdomg 9578 xpwdomg 9579 infdifsn 9658 ac10ct 10113 inffien 10142 djuen 10248 djudom2 10262 djufi 10265 cdainflem 10266 djulepw 10271 infdjuabs 10283 infunabs 10284 infmap2 10295 cfslb2n 10346 fin4i 10376 isfin5 10377 isfin6 10378 fin4en1 10387 isfin4p1 10393 isfin32i 10443 fin45 10470 fin56 10471 fin67 10473 hsmexlem1 10504 hsmexlem3 10506 axcc3 10516 ttukeylem1 10587 brdom3 10607 iundom2g 10624 iundom 10626 gchi 10709 engch 10713 gchdomtri 10714 fpwwe2lem5 10720 fpwwe2lem6 10721 fpwwe2lem8 10723 gchdjuidm 10753 gchpwdom 10755 prcdnq 11078 reexALT 13112 hasheni 14492 hashdomi 14524 climcl 15666 climi 15677 climrlim2 15714 climrecl 15750 climge0 15751 iseralt 15852 climfsum 15987 structex 17328 issubc 18010 pmtrfv 19666 dprdval 20219 frgpcyg 21879 lindff 22121 lindfind 22122 f1lindf 22128 lindfmm 22133 lsslindf 22136 lbslcic 22147 psrbaglesupp 22230 hauspwdom 23820 refbas 23829 refssex 23830 reftr 23833 refun0 23834 ovoliunnul 25828 dvle 26327 cyclnspth 30389 hlimi 31790 gsumhashmul 33628 extdgval 34285 finextfldext 34296 kardenir 35826 karddom 35829 kardsdom 35830 usgrgt2cycl 35909 brsset 36651 brbigcup 36660 elfix2 36666 brcolinear2 36823 isfne 37127 refssfne 37146 bj-epelg 37983 bj-ideqb 38080 bj-opelidb1ALT 38087 ovoliunnfl 38580 voliunnfl 38582 volsupnfl 38583 brabg2 38651 heiborlem4 38748 isrngo 38831 isdivrngo 38884 brssr 39513 issetssr 39515 fphpd 43822 ctbnfien 43824 sdomne0 44413 climd 46681 climuzlem 46752 rlimdmafv 48246 rlimdmafv2 48327 imasubc 50258 imassc 50260 imaid 50261 imaf1co 50262 imasubc3 50263 fuco112 50436 fuco111 50437 fuco21 50443 fucoid 50455 |
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