Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > cnv0 | Unicode version |
Description: The converse of the empty set. (Contributed by NM, 6-Apr-1998.) |
Ref | Expression |
---|---|
cnv0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relcnv 4982 | . 2 | |
2 | rel0 4729 | . 2 | |
3 | vex 2729 | . . . 4 | |
4 | vex 2729 | . . . 4 | |
5 | 3, 4 | opelcnv 4786 | . . 3 |
6 | noel 3413 | . . . 4 | |
7 | noel 3413 | . . . 4 | |
8 | 6, 7 | 2false 691 | . . 3 |
9 | 5, 8 | bitr4i 186 | . 2 |
10 | 1, 2, 9 | eqrelriiv 4698 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1343 wcel 2136 c0 3409 cop 3579 ccnv 4603 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-br 3983 df-opab 4044 df-xp 4610 df-rel 4611 df-cnv 4612 |
This theorem is referenced by: xp0 5023 cnveq0 5060 co01 5118 f10 5466 f1o00 5467 tpos0 6242 |
Copyright terms: Public domain | W3C validator |