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Mirrors > Home > MPE Home > Th. List > fvsng | Structured version Visualization version Unicode version |
Description: The value of a singleton of an ordered pair is the second member. (Contributed by NM, 26-Oct-2012.) |
Ref | Expression |
---|---|
fvsng |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opeq1 4402 | . . . . 5 | |
2 | 1 | sneqd 4189 | . . . 4 |
3 | id 22 | . . . 4 | |
4 | 2, 3 | fveq12d 6197 | . . 3 |
5 | 4 | eqeq1d 2624 | . 2 |
6 | opeq2 4403 | . . . . 5 | |
7 | 6 | sneqd 4189 | . . . 4 |
8 | 7 | fveq1d 6193 | . . 3 |
9 | id 22 | . . 3 | |
10 | 8, 9 | eqeq12d 2637 | . 2 |
11 | vex 3203 | . . 3 | |
12 | vex 3203 | . . 3 | |
13 | 11, 12 | fvsn 6446 | . 2 |
14 | 5, 10, 13 | vtocl2g 3270 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 csn 4177 cop 4183 cfv 5888 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-iota 5851 df-fun 5890 df-fv 5896 |
This theorem is referenced by: fsnunfv 6453 fvpr1g 6458 fvpr2g 6459 fsnex 6538 suppsnop 7309 enfixsn 8069 axdc3lem4 9275 fseq1p1m1 12414 1fv 12458 s1fv 13390 sumsnf 14473 sumsn 14475 prodsn 14692 prodsnf 14694 seq1st 15284 vdwlem8 15692 setsid 15914 xpsc0 16220 xpsc1 16221 mgm1 17257 sgrp1 17293 mnd1 17331 mnd1id 17332 gsumws1 17376 grp1 17522 dprdsn 18435 ring1 18602 ixpsnbasval 19209 frgpcyg 19922 mat1dimscm 20281 mat1dimmul 20282 mat1rhmelval 20286 m1detdiag 20403 pt1hmeo 21609 1loopgrvd0 26400 1hevtxdg0 26401 1hevtxdg1 26402 1egrvtxdg1 26405 actfunsnrndisj 30683 reprsuc 30693 breprexplema 30708 cvmliftlem7 31273 cvmliftlem13 31278 noextenddif 31821 noextendlt 31822 noextendgt 31823 sumsnd 39185 mapsnend 39391 ovnovollem1 40870 nnsum3primesprm 41678 lincvalsng 42205 snlindsntorlem 42259 lmod1lem2 42277 lmod1lem3 42278 |
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