| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > funcnv3 | Unicode version | ||
| Description: A condition showing a class is single-rooted. (See funcnv 5334). (Contributed by NM, 26-May-2006.) |
| Ref | Expression |
|---|---|
| funcnv3 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfrn2 4865 |
. . . . . 6
| |
| 2 | 1 | abeq2i 2315 |
. . . . 5
|
| 3 | 2 | biimpi 120 |
. . . 4
|
| 4 | 3 | biantrurd 305 |
. . 3
|
| 5 | 4 | ralbiia 2519 |
. 2
|
| 6 | funcnv 5334 |
. 2
| |
| 7 | df-reu 2490 |
. . . 4
| |
| 8 | vex 2774 |
. . . . . . 7
| |
| 9 | vex 2774 |
. . . . . . 7
| |
| 10 | 8, 9 | breldm 4881 |
. . . . . 6
|
| 11 | 10 | pm4.71ri 392 |
. . . . 5
|
| 12 | 11 | eubii 2062 |
. . . 4
|
| 13 | eu5 2100 |
. . . 4
| |
| 14 | 7, 12, 13 | 3bitr2i 208 |
. . 3
|
| 15 | 14 | ralbii 2511 |
. 2
|
| 16 | 5, 6, 15 | 3bitr4i 212 |
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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ral 2488 df-rex 2489 df-reu 2490 df-v 2773 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-br 4044 df-opab 4105 df-id 4339 df-xp 4680 df-rel 4681 df-cnv 4682 df-co 4683 df-dm 4684 df-rn 4685 df-fun 5272 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |