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| Mirrors > Home > ILE Home > Th. List > rmo3 | Unicode version | ||
| Description: Restricted "at most one" using explicit substitution. (Contributed by NM, 4-Nov-2012.) (Revised by NM, 16-Jun-2017.) |
| Ref | Expression |
|---|---|
| rmo2.1 |
|
| Ref | Expression |
|---|---|
| rmo3 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rmo 2314 |
. 2
| |
| 2 | sban 1829 |
. . . . . . . . . . 11
| |
| 3 | clelsb3 2142 |
. . . . . . . . . . . 12
| |
| 4 | 3 | anbi1i 431 |
. . . . . . . . . . 11
|
| 5 | 2, 4 | bitri 173 |
. . . . . . . . . 10
|
| 6 | 5 | anbi2i 430 |
. . . . . . . . 9
|
| 7 | an4 520 |
. . . . . . . . 9
| |
| 8 | ancom 253 |
. . . . . . . . . 10
| |
| 9 | 8 | anbi1i 431 |
. . . . . . . . 9
|
| 10 | 6, 7, 9 | 3bitri 195 |
. . . . . . . 8
|
| 11 | 10 | imbi1i 227 |
. . . . . . 7
|
| 12 | impexp 250 |
. . . . . . 7
| |
| 13 | impexp 250 |
. . . . . . 7
| |
| 14 | 11, 12, 13 | 3bitri 195 |
. . . . . 6
|
| 15 | 14 | albii 1359 |
. . . . 5
|
| 16 | df-ral 2311 |
. . . . 5
| |
| 17 | r19.21v 2396 |
. . . . 5
| |
| 18 | 15, 16, 17 | 3bitr2i 197 |
. . . 4
|
| 19 | 18 | albii 1359 |
. . 3
|
| 20 | nfv 1421 |
. . . . 5
| |
| 21 | rmo2.1 |
. . . . 5
| |
| 22 | 20, 21 | nfan 1457 |
. . . 4
|
| 23 | 22 | mo3 1954 |
. . 3
|
| 24 | df-ral 2311 |
. . 3
| |
| 25 | 19, 23, 24 | 3bitr4i 201 |
. 2
|
| 26 | 1, 25 | bitri 173 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
| This theorem depends on definitions: df-bi 110 df-nf 1350 df-sb 1646 df-eu 1903 df-mo 1904 df-cleq 2033 df-clel 2036 df-ral 2311 df-rmo 2314 |
| This theorem is referenced by: (None) |
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