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Mirrors > Home > QLE Home > Th. List > oa4uto4 | Unicode version |
Description: Derivation of standard 4-variable proper OA law from "universal" variant oa4to4u2 974. |
Ref | Expression |
---|---|
oa4uto4.1 |
Ref | Expression |
---|---|
oa4uto4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | u1lem9a 777 | . . . . 5 | |
2 | 1 | lecon1 155 | . . . 4 |
3 | u1lem9a 777 | . . . . . 6 | |
4 | 3 | lecon1 155 | . . . . 5 |
5 | ax-a2 31 | . . . . . . 7 | |
6 | 2, 4 | le2an 169 | . . . . . . . 8 |
7 | 6 | lelor 166 | . . . . . . 7 |
8 | 5, 7 | bltr 138 | . . . . . 6 |
9 | ax-a2 31 | . . . . . . . 8 | |
10 | u1lem9a 777 | . . . . . . . . . . 11 | |
11 | 10 | lecon1 155 | . . . . . . . . . 10 |
12 | 2, 11 | le2an 169 | . . . . . . . . 9 |
13 | 12 | lelor 166 | . . . . . . . 8 |
14 | 9, 13 | bltr 138 | . . . . . . 7 |
15 | ax-a2 31 | . . . . . . . 8 | |
16 | 4, 11 | le2an 169 | . . . . . . . . 9 |
17 | 16 | lelor 166 | . . . . . . . 8 |
18 | 15, 17 | bltr 138 | . . . . . . 7 |
19 | 14, 18 | le2an 169 | . . . . . 6 |
20 | 8, 19 | le2or 168 | . . . . 5 |
21 | 4, 20 | le2an 169 | . . . 4 |
22 | 2, 21 | le2or 168 | . . 3 |
23 | 22 | lelan 167 | . 2 |
24 | oa4uto4.1 | . 2 | |
25 | 23, 24 | letr 137 | 1 |
Colors of variables: term |
Syntax hints: 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-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-t 41 df-f 42 df-i1 44 df-le1 130 df-le2 131 |
This theorem is referenced by: d6oa 997 axoa4 1034 |
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