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Related theorems Unicode version |
| Description: Value of an alternate
definition of the |
| Ref | Expression |
|---|---|
| 2nd2val |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | visset 1816 |
. . . . . 6
| |
| 2 | visset 1816 |
. . . . . 6
| |
| 3 | 1, 2 | op2nd 4093 |
. . . . 5
|
| 4 | eqidd 1479 |
. . . . . . 7
| |
| 5 | id 59 |
. . . . . . 7
| |
| 6 | eqid 1478 |
. . . . . . 7
| |
| 7 | 2, 4, 5, 6 | oprabval5 4036 |
. . . . . 6
|
| 8 | 1, 2, 7 | mp2an 699 |
. . . . 5
|
| 9 | df-opr 3972 |
. . . . 5
| |
| 10 | 3, 8, 9 | 3eqtr2r 1505 |
. . . 4
|
| 11 | fveq2 3731 |
. . . . 5
| |
| 12 | fveq2 3731 |
. . . . 5
| |
| 13 | 11, 12 | eqeq12d 1492 |
. . . 4
|
| 14 | 10, 13 | mpbii 193 |
. . 3
|
| 15 | 14 | 19.23aivv 1298 |
. 2
|
| 16 | visset 1816 |
. . . . . . . . . . 11
| |
| 17 | visset 1816 |
. . . . . . . . . . 11
| |
| 18 | 16, 17 | pm3.2i 285 |
. . . . . . . . . 10
|
| 19 | a9e 1127 |
. . . . . . . . . 10
| |
| 20 | 18, 19 | 2th 720 |
. . . . . . . . 9
|
| 21 | 20 | opabbii 2677 |
. . . . . . . 8
|
| 22 | df-xp 3191 |
. . . . . . . 8
| |
| 23 | dmoprab 4009 |
. . . . . . . 8
| |
| 24 | 21, 22, 23 | 3eqtr4r 1509 |
. . . . . . 7
|
| 25 | 24 | eleq2i 1541 |
. . . . . 6
|
| 26 | elvv 3235 |
. . . . . 6
| |
| 27 | eqcom 1480 |
. . . . . . 7
| |
| 28 | 27 | 2exbii 1054 |
. . . . . 6
|
| 29 | 25, 26, 28 | 3bitr 177 |
. . . . 5
|
| 30 | 29 | negbii 187 |
. . . 4
|
| 31 | ndmfv 3752 |
. . . 4
| |
| 32 | 30, 31 | sylbir 201 |
. . 3
|
| 33 | n0 2294 |
. . . . . . . . 9
| |
| 34 | 2 | elrn2 3356 |
. . . . . . . . . . 11
|
| 35 | opex 2789 |
. . . . . . . . . . . . 13
| |
| 36 | 35 | elsnc 2436 |
. . . . . . . . . . . 12
|
| 37 | 36 | exbii 1053 |
. . . . . . . . . . 11
|
| 38 | 34, 37 | bitr 173 |
. . . . . . . . . 10
|
| 39 | 38 | exbii 1053 |
. . . . . . . . 9
|
| 40 | excom 1048 |
. . . . . . . . 9
| |
| 41 | 33, 39, 40 | 3bitr 177 |
. . . . . . . 8
|
| 42 | 41 | biimp 151 |
. . . . . . 7
|
| 43 | 42 | con1i 96 |
. . . . . 6
|
| 44 | 43 | unieqd 2517 |
. . . . 5
|
| 45 | uni0 2530 |
. . . . 5
| |
| 46 | 44, 45 | syl6eq 1526 |
. . . 4
|
| 47 | 2ndval 4089 |
. . . 4
| |
| 48 | 46, 47 | syl5eq 1522 |
. . 3
|
| 49 | 32, 48 | eqtr4d 1513 |
. 2
|
| 50 | 15, 49 | pm2.61i 126 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: df2nd2 4134 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-9 967 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-sep 2709 ax-nul 2716 ax-pow 2749 ax-pr 2786 ax-un 2873 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3an 779 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-ral 1652 df-rex 1653 df-v 1815 df-sbc 1945 df-csb 2006 df-dif 2053 df-un 2054 df-in 2055 df-ss 2057 df-nul 2285 df-pw 2407 df-sn 2417 df-pr 2418 df-op 2421 df-uni 2509 df-br 2626 df-opab 2673 df-id 2842 df-xp 3191 df-rel 3192 df-cnv 3193 df-co 3194 df-dm 3195 df-rn 3196 df-res 3197 df-ima 3198 df-fun 3199 df-fv 3205 df-opr 3972 df-oprab 3973 df-2nd 4087 |