Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > rabeq0 | Unicode version |
Description: Condition for a restricted class abstraction to be empty. (Contributed by Jeff Madsen, 7-Jun-2010.) |
Ref | Expression |
---|---|
rabeq0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imnan 624 | . . 3 | |
2 | 1 | albii 1359 | . 2 |
3 | df-ral 2311 | . 2 | |
4 | sbn 1826 | . . . 4 | |
5 | 4 | albii 1359 | . . 3 |
6 | nfv 1421 | . . . 4 | |
7 | 6 | sb8 1736 | . . 3 |
8 | eq0 3239 | . . . 4 | |
9 | df-rab 2315 | . . . . . . . 8 | |
10 | 9 | eleq2i 2104 | . . . . . . 7 |
11 | df-clab 2027 | . . . . . . 7 | |
12 | 10, 11 | bitri 173 | . . . . . 6 |
13 | 12 | notbii 594 | . . . . 5 |
14 | 13 | albii 1359 | . . . 4 |
15 | 8, 14 | bitri 173 | . . 3 |
16 | 5, 7, 15 | 3bitr4ri 202 | . 2 |
17 | 2, 3, 16 | 3bitr4ri 202 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 97 wb 98 wal 1241 wceq 1243 wcel 1393 wsb 1645 cab 2026 wral 2306 crab 2310 c0 3224 |
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-in1 544 ax-in2 545 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-tru 1246 df-fal 1249 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rab 2315 df-v 2559 df-dif 2920 df-nul 3225 |
This theorem is referenced by: rabnc 3250 rabrsndc 3438 ssfiexmid 6336 diffitest 6344 iooidg 8778 icc0r 8795 fznlem 8905 |
Copyright terms: Public domain | W3C validator |