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Mirrors > Home > NFE Home > Th. List > brsnsi1 | Unicode version |
Description: Binary relationship of a singleton to an arbitrary set in a singleton image. (Contributed by SF, 9-Mar-2015.) |
Ref | Expression |
---|---|
brsnsi1.1 |
Ref | Expression |
---|---|
brsnsi1 | SI |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | brsi 4761 | . 2 SI | |
2 | excom 1741 | . . 3 | |
3 | eqcom 2355 | . . . . . . . . 9 | |
4 | vex 2862 | . . . . . . . . . 10 | |
5 | 4 | sneqb 3876 | . . . . . . . . 9 |
6 | 3, 5 | bitri 240 | . . . . . . . 8 |
7 | 6 | 3anbi1i 1142 | . . . . . . 7 |
8 | 3anass 938 | . . . . . . 7 | |
9 | 7, 8 | bitri 240 | . . . . . 6 |
10 | 9 | exbii 1582 | . . . . 5 |
11 | brsnsi1.1 | . . . . . 6 | |
12 | breq1 4642 | . . . . . . 7 | |
13 | 12 | anbi2d 684 | . . . . . 6 |
14 | 11, 13 | ceqsexv 2894 | . . . . 5 |
15 | 10, 14 | bitri 240 | . . . 4 |
16 | 15 | exbii 1582 | . . 3 |
17 | 2, 16 | bitri 240 | . 2 |
18 | 1, 17 | bitri 240 | 1 SI |
Colors of variables: wff setvar class |
Syntax hints: wb 176 wa 358 w3a 934 wex 1541 wceq 1642 wcel 1710 cvv 2859 csn 3737 class class class wbr 4639 SI csi 4720 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-13 1712 ax-14 1714 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4078 ax-xp 4079 ax-cnv 4080 ax-1c 4081 ax-sset 4082 ax-si 4083 ax-ins2 4084 ax-ins3 4085 ax-typlower 4086 ax-sn 4087 |
This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3or 935 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-eu 2208 df-mo 2209 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2478 df-ne 2518 df-ral 2619 df-rex 2620 df-reu 2621 df-rmo 2622 df-rab 2623 df-v 2861 df-sbc 3047 df-nin 3211 df-compl 3212 df-in 3213 df-un 3214 df-dif 3215 df-symdif 3216 df-ss 3259 df-pss 3261 df-nul 3551 df-if 3663 df-pw 3724 df-sn 3741 df-pr 3742 df-uni 3892 df-int 3927 df-opk 4058 df-1c 4136 df-pw1 4137 df-uni1 4138 df-xpk 4185 df-cnvk 4186 df-ins2k 4187 df-ins3k 4188 df-imak 4189 df-cok 4190 df-p6 4191 df-sik 4192 df-ssetk 4193 df-imagek 4194 df-idk 4195 df-iota 4339 df-0c 4377 df-addc 4378 df-nnc 4379 df-fin 4380 df-lefin 4440 df-ltfin 4441 df-ncfin 4442 df-tfin 4443 df-evenfin 4444 df-oddfin 4445 df-sfin 4446 df-spfin 4447 df-phi 4565 df-op 4566 df-proj1 4567 df-proj2 4568 df-opab 4623 df-br 4640 df-si 4728 |
This theorem is referenced by: ceexlem1 6173 tcfnex 6244 nchoicelem11 6299 nchoicelem16 6304 |
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