Mathbox for Jonathan Ben-Naim |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > bnj1143 | Structured version Visualization version Unicode version |
Description: First-order logic and set theory. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) (New usage is discouraged.) |
Ref | Expression |
---|---|
bnj1143 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-iun 4522 | . . . 4 | |
2 | notnotb 304 | . . . . . . . 8 | |
3 | neq0 3930 | . . . . . . . 8 | |
4 | 2, 3 | xchbinx 324 | . . . . . . 7 |
5 | df-rex 2918 | . . . . . . . . 9 | |
6 | exsimpl 1795 | . . . . . . . . 9 | |
7 | 5, 6 | sylbi 207 | . . . . . . . 8 |
8 | 7 | con3i 150 | . . . . . . 7 |
9 | 4, 8 | sylbi 207 | . . . . . 6 |
10 | 9 | alrimiv 1855 | . . . . 5 |
11 | notnotb 304 | . . . . . . 7 | |
12 | neq0 3930 | . . . . . . . 8 | |
13 | 1 | eqeq1i 2627 | . . . . . . . . 9 |
14 | 13 | notbii 310 | . . . . . . . 8 |
15 | df-iun 4522 | . . . . . . . . . 10 | |
16 | 15 | eleq2i 2693 | . . . . . . . . 9 |
17 | 16 | exbii 1774 | . . . . . . . 8 |
18 | 12, 14, 17 | 3bitr3i 290 | . . . . . . 7 |
19 | 11, 18 | xchbinx 324 | . . . . . 6 |
20 | alnex 1706 | . . . . . 6 | |
21 | abid 2610 | . . . . . . . 8 | |
22 | 21 | notbii 310 | . . . . . . 7 |
23 | 22 | albii 1747 | . . . . . 6 |
24 | 19, 20, 23 | 3bitr2i 288 | . . . . 5 |
25 | 10, 24 | sylibr 224 | . . . 4 |
26 | 1, 25 | syl5eq 2668 | . . 3 |
27 | 0ss 3972 | . . 3 | |
28 | 26, 27 | syl6eqss 3655 | . 2 |
29 | iunconst 4529 | . . 3 | |
30 | eqimss 3657 | . . 3 | |
31 | 29, 30 | syl 17 | . 2 |
32 | 28, 31 | pm2.61ine 2877 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wa 384 wal 1481 wceq 1483 wex 1704 wcel 1990 cab 2608 wne 2794 wrex 2913 wss 3574 c0 3915 ciun 4520 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-v 3202 df-dif 3577 df-in 3581 df-ss 3588 df-nul 3916 df-iun 4522 |
This theorem is referenced by: bnj1146 30862 bnj1145 31061 bnj1136 31065 |
Copyright terms: Public domain | W3C validator |