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Mirrors > Home > QLE Home > Th. List > oa4to6 | Unicode version |
Description: Orthoarguesian law (4-variable to 6-variable proof). The first 3 hypotheses are those for 6-OA. The next 4 are variable substitutions into 4-OA. The last is the 4-OA. The proof uses OM logic only. |
Ref | Expression |
---|---|
oa4to6.oa6.1 | |
oa4to6.oa6.2 | |
oa4to6.oa6.3 | |
oa4to6.4 | |
oa4to6.5 | |
oa4to6.6 | |
oa4to6.7 | |
oa4to6.oa4 |
Ref | Expression |
---|---|
oa4to6 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oa4to6.oa6.1 | . . . . 5 | |
2 | 1 | lecon3 157 | . . . 4 |
3 | 2 | lecon 154 | . . 3 |
4 | oa4to6.oa6.2 | . . . . 5 | |
5 | 4 | lecon3 157 | . . . 4 |
6 | 5 | lecon 154 | . . 3 |
7 | oa4to6.oa6.3 | . . . . 5 | |
8 | 7 | lecon3 157 | . . . 4 |
9 | 8 | lecon 154 | . . 3 |
10 | id 59 | . . 3 | |
11 | oa4to6.oa4 | . . . 4 | |
12 | oa4to6.5 | . . . . . 6 | |
13 | oa4to6.4 | . . . . . 6 | |
14 | 12, 13 | ud1lem0ab 257 | . . . . 5 |
15 | oa4to6.6 | . . . . . . 7 | |
16 | 12, 15 | 2an 79 | . . . . . . . . 9 |
17 | 15, 13 | ud1lem0ab 257 | . . . . . . . . . 10 |
18 | 14, 17 | 2an 79 | . . . . . . . . 9 |
19 | 16, 18 | 2or 72 | . . . . . . . 8 |
20 | oa4to6.7 | . . . . . . . . . . 11 | |
21 | 12, 20 | 2an 79 | . . . . . . . . . 10 |
22 | 20, 13 | ud1lem0ab 257 | . . . . . . . . . . 11 |
23 | 14, 22 | 2an 79 | . . . . . . . . . 10 |
24 | 21, 23 | 2or 72 | . . . . . . . . 9 |
25 | 15, 20 | 2an 79 | . . . . . . . . . 10 |
26 | 17, 22 | 2an 79 | . . . . . . . . . 10 |
27 | 25, 26 | 2or 72 | . . . . . . . . 9 |
28 | 24, 27 | 2an 79 | . . . . . . . 8 |
29 | 19, 28 | 2or 72 | . . . . . . 7 |
30 | 15, 29 | 2an 79 | . . . . . 6 |
31 | 12, 30 | 2or 72 | . . . . 5 |
32 | 14, 31 | 2an 79 | . . . 4 |
33 | 11, 32, 13 | le3tr2 141 | . . 3 |
34 | 3, 6, 9, 10, 33 | oa4to6dual 964 | . 2 |
35 | 34 | oa6fromdual 953 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wle 2 wn 4 wo 6 wa 7 wi1 12 |
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-i1 44 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: oa3-2to2s 990 d6oa 997 oa6 1036 |
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