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Mirrors > Home > QLE Home > Th. List > oa4to4u2 | Unicode version |
Description: A weaker-looking "universal" proper 4-OA. |
Ref | Expression |
---|---|
oa4to4u.1 | |
oa4to4u.2 | |
oa4to4u3 | |
oa4to4u.4 |
Ref | Expression |
---|---|
oa4to4u2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oa4to4u.1 | . . 3 | |
2 | oa4to4u.2 | . . 3 | |
3 | oa4to4u3 | . . 3 | |
4 | oa4to4u.4 | . . 3 | |
5 | 1, 2, 3, 4 | oa4to4u 973 | . 2 |
6 | u1lem8 776 | . . . . 5 | |
7 | lear 161 | . . . . . 6 | |
8 | lear 161 | . . . . . 6 | |
9 | 7, 8 | lel2or 170 | . . . . 5 |
10 | 6, 9 | bltr 138 | . . . 4 |
11 | u1lem8 776 | . . . . 5 | |
12 | lear 161 | . . . . . 6 | |
13 | lear 161 | . . . . . 6 | |
14 | 12, 13 | lel2or 170 | . . . . 5 |
15 | 11, 14 | bltr 138 | . . . 4 |
16 | 10, 15 | lel2or 170 | . . 3 |
17 | u1lem8 776 | . . . 4 | |
18 | lear 161 | . . . . 5 | |
19 | lear 161 | . . . . 5 | |
20 | 18, 19 | lel2or 170 | . . . 4 |
21 | 17, 20 | bltr 138 | . . 3 |
22 | 16, 21 | lel2or 170 | . 2 |
23 | 5, 22 | letr 137 | 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: 4oa 1039 |
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