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Mirrors > Home > QLE Home > Th. List > oa23 | Unicode version |
Description: Derivation of OA from Godowski/Greechie Eq. II. |
Ref | Expression |
---|---|
oa23.1 |
Ref | Expression |
---|---|
oa23 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-a2 31 | . . . . . . 7 | |
2 | 1 | ax-r4 37 | . . . . . 6 |
3 | ancom 74 | . . . . . 6 | |
4 | 2, 3 | 2or 72 | . . . . 5 |
5 | 4 | lan 77 | . . . 4 |
6 | 5 | ax-r5 38 | . . 3 |
7 | ax-a2 31 | . . 3 | |
8 | ax-a3 32 | . . . . . . . . . 10 | |
9 | 8 | ax-r1 35 | . . . . . . . . 9 |
10 | oridm 110 | . . . . . . . . . 10 | |
11 | 10 | ax-r5 38 | . . . . . . . . 9 |
12 | 9, 11 | ax-r2 36 | . . . . . . . 8 |
13 | u2lemonb 636 | . . . . . . . 8 | |
14 | 12, 13 | 2an 79 | . . . . . . 7 |
15 | 14 | ax-r1 35 | . . . . . 6 |
16 | an1 106 | . . . . . . 7 | |
17 | 16 | ax-r1 35 | . . . . . 6 |
18 | comorr 184 | . . . . . . 7 | |
19 | u2lemc1 681 | . . . . . . . . 9 | |
20 | 19 | comcom 453 | . . . . . . . 8 |
21 | 20 | comcom2 183 | . . . . . . 7 |
22 | 18, 21 | fh3 471 | . . . . . 6 |
23 | 15, 17, 22 | 3tr1 63 | . . . . 5 |
24 | oa23.1 | . . . . . . . . 9 | |
25 | lea 160 | . . . . . . . . 9 | |
26 | 24, 25 | ler2an 173 | . . . . . . . 8 |
27 | ancom 74 | . . . . . . . 8 | |
28 | u2lemanb 616 | . . . . . . . 8 | |
29 | 26, 27, 28 | le3tr1 140 | . . . . . . 7 |
30 | 29 | lelor 166 | . . . . . 6 |
31 | orabs 120 | . . . . . 6 | |
32 | 30, 31 | lbtr 139 | . . . . 5 |
33 | 23, 32 | bltr 138 | . . . 4 |
34 | leo 158 | . . . 4 | |
35 | 33, 34 | lebi 145 | . . 3 |
36 | 6, 7, 35 | 3tr 65 | . 2 |
37 | 36 | df-le1 130 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 wt 8 wi2 13 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i2 45 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: oa43v 1028 oa63v 1032 |
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