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Mirrors > Home > MPE Home > Th. List > nic-axALT | Structured version Visualization version Unicode version |
Description: A direct proof of nic-ax 1598. (Contributed by NM, 11-Dec-2008.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
nic-axALT |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 473 | . . . . . 6 | |
2 | 1 | imim2i 16 | . . . . 5 |
3 | con3 149 | . . . . . 6 | |
4 | 3 | imim2d 57 | . . . . 5 |
5 | 2, 4 | syl 17 | . . . 4 |
6 | anidm 676 | . . . . 5 | |
7 | 6 | biimpri 218 | . . . 4 |
8 | 5, 7 | jctil 560 | . . 3 |
9 | df-nan 1448 | . . . . . . . . 9 | |
10 | 9 | anbi2i 730 | . . . . . . . 8 |
11 | 10 | notbii 310 | . . . . . . 7 |
12 | df-nan 1448 | . . . . . . 7 | |
13 | iman 440 | . . . . . . 7 | |
14 | 11, 12, 13 | 3bitr4i 292 | . . . . . 6 |
15 | df-nan 1448 | . . . . . . 7 | |
16 | df-nan 1448 | . . . . . . . . . . 11 | |
17 | 16 | anbi2i 730 | . . . . . . . . . 10 |
18 | 17 | notbii 310 | . . . . . . . . 9 |
19 | df-nan 1448 | . . . . . . . . 9 | |
20 | iman 440 | . . . . . . . . 9 | |
21 | 18, 19, 20 | 3bitr4i 292 | . . . . . . . 8 |
22 | df-nan 1448 | . . . . . . . . . . . 12 | |
23 | imnan 438 | . . . . . . . . . . . 12 | |
24 | 22, 23 | bitr4i 267 | . . . . . . . . . . 11 |
25 | df-nan 1448 | . . . . . . . . . . . 12 | |
26 | anidm 676 | . . . . . . . . . . . . 13 | |
27 | df-nan 1448 | . . . . . . . . . . . . 13 | |
28 | imnan 438 | . . . . . . . . . . . . . 14 | |
29 | con2b 349 | . . . . . . . . . . . . . 14 | |
30 | 28, 29 | bitr3i 266 | . . . . . . . . . . . . 13 |
31 | 26, 27, 30 | 3bitri 286 | . . . . . . . . . . . 12 |
32 | 25, 31 | xchbinx 324 | . . . . . . . . . . 11 |
33 | 24, 32 | anbi12i 733 | . . . . . . . . . 10 |
34 | 33 | notbii 310 | . . . . . . . . 9 |
35 | df-nan 1448 | . . . . . . . . 9 | |
36 | iman 440 | . . . . . . . . 9 | |
37 | 34, 35, 36 | 3bitr4i 292 | . . . . . . . 8 |
38 | 21, 37 | anbi12i 733 | . . . . . . 7 |
39 | 15, 38 | xchbinx 324 | . . . . . 6 |
40 | 14, 39 | anbi12i 733 | . . . . 5 |
41 | 40 | notbii 310 | . . . 4 |
42 | iman 440 | . . . 4 | |
43 | 41, 42 | bitr4i 267 | . . 3 |
44 | 8, 43 | mpbir 221 | . 2 |
45 | df-nan 1448 | . 2 | |
46 | 44, 45 | mpbir 221 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wn 3 wi 4 wa 384 wnan 1447 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 197 df-an 386 df-nan 1448 |
This theorem is referenced by: (None) |
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