Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > difundir | Unicode version |
Description: Distributive law for class difference. (Contributed by NM, 17-Aug-2004.) |
Ref | Expression |
---|---|
difundir |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | indir 3376 | . 2 | |
2 | invdif 3369 | . 2 | |
3 | invdif 3369 | . . 3 | |
4 | invdif 3369 | . . 3 | |
5 | 3, 4 | uneq12i 3279 | . 2 |
6 | 1, 2, 5 | 3eqtr3i 2199 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1348 cvv 2730 cdif 3118 cun 3119 cin 3120 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 |
This theorem depends on definitions: df-bi 116 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-v 2732 df-dif 3123 df-un 3125 df-in 3127 |
This theorem is referenced by: symdif1 3392 difun2 3493 diftpsn3 3719 unfiin 6899 setsfun0 12439 strleund 12492 strleun 12493 |
Copyright terms: Public domain | W3C validator |