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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 5716 | . 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 2146 Vcvv 3457 class class class wbr 5111 Rel wrel 5668 |
| 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 2148 ax-9 2156 ax-ext 2737 ax-sep 5259 ax-pr 5406 |
| 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 2744 df-cleq 2757 df-clel 2840 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-br 5112 df-opab 5176 df-xp 5669 df-rel 5670 |
| This theorem is used by: nprrel 5722 opeliunxp2 5826 ideqg 5839 issetid 5842 dffv2 6980 brfvopabrbr 6990 brrpssg 7732 opeliunxp2f 8212 brtpos2 8234 brdomg 8961 ctex 8966 isfi 8978 domssr 9002 domdifsn 9055 xpdom2 9067 xpdom1g 9069 sbth 9092 sdomirr 9109 sdomdif 9120 fodomr 9123 pwdom 9124 xpen 9135 pwen 9145 sbthfi 9190 sucdom2 9194 fineqv 9234 infsdomnn 9268 relprcnfsupp 9331 fsuppssov1 9351 fsuppunbi 9356 mapfien2 9376 harword 9532 brwdom 9536 domwdom 9543 brwdom3i 9552 unwdomg 9553 xpwdomg 9554 infdifsn 9633 ac10ct 10034 inffien 10063 djuen 10169 djudom2 10183 djufi 10186 cdainflem 10187 djulepw 10192 infdjuabs 10204 infunabs 10205 infmap2 10216 cfslb2n 10267 fin4i 10297 isfin5 10298 isfin6 10299 fin4en1 10308 isfin4p1 10314 isfin32i 10364 fin45 10391 fin56 10392 fin67 10394 hsmexlem1 10425 hsmexlem3 10427 axcc3 10437 ttukeylem1 10508 brdom3 10528 iundom2g 10543 iundom 10545 gchi 10628 engch 10632 gchdomtri 10633 fpwwe2lem5 10639 fpwwe2lem6 10640 fpwwe2lem8 10642 gchdjuidm 10672 gchpwdom 10674 prcdnq 10997 reexALT 13028 hasheni 14406 hashdomi 14438 climcl 15578 climi 15589 climrlim2 15626 climrecl 15662 climge0 15663 iseralt 15764 climfsum 15899 structex 17236 issubc 17918 pmtrfv 19570 dprdval 20123 frgpcyg 21777 lindff 22019 lindfind 22020 f1lindf 22026 lindfmm 22031 lsslindf 22034 lbslcic 22045 psrbaglesupp 22126 hauspwdom 23713 refbas 23722 refssex 23723 reftr 23726 refun0 23727 ovoliunnul 25721 dvle 26221 cyclnspth 30220 hlimi 31615 gsumhashmul 33455 extdgval 34111 finextfldext 34122 kardenir 35632 karddom 35635 kardsdom 35636 usgrgt2cycl 35671 brsset 36420 brbigcup 36429 elfix2 36435 brcolinear2 36591 isfne 36911 refssfne 36930 bj-epelg 37765 bj-ideqb 37864 bj-opelidb1ALT 37871 ovoliunnfl 38374 voliunnfl 38376 volsupnfl 38377 brabg2 38430 heiborlem4 38527 isrngo 38610 isdivrngo 38663 brssr 39292 issetssr 39294 fphpd 43620 ctbnfien 43622 sdomne0 44216 climd 46463 climuzlem 46534 rlimdmafv 47991 rlimdmafv2 48072 imasubc 50005 imassc 50007 imaid 50008 imaf1co 50009 imasubc3 50010 fuco112 50183 fuco111 50184 fuco21 50190 fucoid 50202 |
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