| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > oprabrexex2 | Unicode version | ||
| Description: Existence of an existentially restricted operation abstraction. (Contributed by Jeff Madsen, 11-Jun-2010.) |
| Ref | Expression |
|---|---|
| oprabrexex2.1 |
|
| oprabrexex2.2 |
|
| Ref | Expression |
|---|---|
| oprabrexex2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-oprab 6017 |
. . 3
| |
| 2 | rexcom4 2824 |
. . . . 5
| |
| 3 | rexcom4 2824 |
. . . . . . 7
| |
| 4 | rexcom4 2824 |
. . . . . . . . 9
| |
| 5 | r19.42v 2688 |
. . . . . . . . . 10
| |
| 6 | 5 | exbii 1651 |
. . . . . . . . 9
|
| 7 | 4, 6 | bitri 184 |
. . . . . . . 8
|
| 8 | 7 | exbii 1651 |
. . . . . . 7
|
| 9 | 3, 8 | bitri 184 |
. . . . . 6
|
| 10 | 9 | exbii 1651 |
. . . . 5
|
| 11 | 2, 10 | bitr2i 185 |
. . . 4
|
| 12 | 11 | abbii 2345 |
. . 3
|
| 13 | 1, 12 | eqtri 2250 |
. 2
|
| 14 | oprabrexex2.1 |
. . 3
| |
| 15 | df-oprab 6017 |
. . . 4
| |
| 16 | oprabrexex2.2 |
. . . 4
| |
| 17 | 15, 16 | eqeltrri 2303 |
. . 3
|
| 18 | 14, 17 | abrexex2 6281 |
. 2
|
| 19 | 13, 18 | eqeltri 2302 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4202 ax-sep 4205 ax-pow 4262 ax-pr 4297 ax-un 4528 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-iun 3970 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 df-fo 5330 df-f1o 5331 df-fv 5332 df-oprab 6017 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |