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| Description: Value of a function given by an ordered-pair class abstraction. |
| Ref | Expression |
|---|---|
| fvopab2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 1794 |
. . 3
| |
| 2 | ax-17 1190 |
. . . . 5
| |
| 3 | hbopab2 2776 |
. . . . . . 7
| |
| 4 | ax-17 1190 |
. . . . . . 7
| |
| 5 | 3, 4 | hbfv 3668 |
. . . . . 6
|
| 6 | ax-17 1190 |
. . . . . 6
| |
| 7 | 5, 6 | hbeq 1541 |
. . . . 5
|
| 8 | 2, 7 | hbim 983 |
. . . 4
|
| 9 | visset 1788 |
. . . . . . . 8
| |
| 10 | eleq1 1510 |
. . . . . . . 8
| |
| 11 | 9, 10 | mpbii 193 |
. . . . . . 7
|
| 12 | 3 | tz6.12f 3677 |
. . . . . . . . . . 11
|
| 13 | opabid 2772 |
. . . . . . . . . . 11
| |
| 14 | 12, 13 | sylanbr 450 |
. . . . . . . . . 10
|
| 15 | euanv 1409 |
. . . . . . . . . . 11
| |
| 16 | 13 | eubii 1364 |
. . . . . . . . . . 11
|
| 17 | eueq 1888 |
. . . . . . . . . . . 12
| |
| 18 | 17 | anbi2i 479 |
. . . . . . . . . . 11
|
| 19 | 15, 16, 18 | 3bitr4r 184 |
. . . . . . . . . 10
|
| 20 | 14, 19 | sylan2b 452 |
. . . . . . . . 9
|
| 21 | 20 | exp43 384 |
. . . . . . . 8
|
| 22 | 21 | pm2.43a 66 |
. . . . . . 7
|
| 23 | 11, 22 | mpdi 48 |
. . . . . 6
|
| 24 | 23 | com12 11 |
. . . . 5
|
| 25 | eqeq2 1460 |
. . . . 5
| |
| 26 | 24, 25 | sylibd 202 |
. . . 4
|
| 27 | 8, 26 | 19.23ai 1040 |
. . 3
|
| 28 | 1, 27 | syl 10 |
. 2
|
| 29 | 28 | impcom 351 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: elrnopabg 3739 fopab2 3762 rnssopab 3764 fopabco 3771 fopabsn 3779 abrexexlem2 3798 dom2d 4339 pw2en 4380 mapxpen 4427 xpmapenlem2 4429 xpmapenlem4 4431 xpmapenlem5 4432 ac6lem 4678 iundom 4736 sumeqfv 6886 serzfsum 6893 fsum1 6894 fsump1 6895 isumval2t 7081 isumclim3t 7086 isumcmpi 7101 geoisum1c 7131 fsumcnlem 7871 fvopab2a 8718 cnlnadjlem5 10133 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-4 951 ax-5 952 ax-6 953 ax-7 954 ax-gen 955 ax-8 1101 ax-9 1102 ax-10 1103 ax-12 1104 ax-13 1107 ax-14 1108 ax-11 1180 ax-17 1190 ax-16 1194 ax-11o 1202 ax-ext 1436 ax-sep 2671 ax-nul 2678 ax-pow 2710 ax-pr 2747 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 957 df-sb 1155 df-eu 1359 df-mo 1360 df-clab 1441 df-cleq 1446 df-clel 1449 df-ne 1563 df-rex 1626 df-v 1787 df-dif 2020 df-un 2021 df-in 2022 df-ss 2024 df-nul 2252 df-pw 2373 df-sn 2383 df-pr 2384 df-op 2387 df-uni 2472 df-br 2588 df-opab 2635 df-xp 3147 df-cnv 3149 df-dm 3151 df-rn 3152 df-res 3153 df-ima 3154 df-fv 3161 |