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Mirrors > Home > QLE Home > Th. List > oa3-1to5 | Unicode version |
Description: Derivation of an equivalent of the second "universal" 3-OA U2 from an equivalent of the first "universal" 3-OA U1. This shows that U2 is redundant in a system containg U1. The hypothesis is theorem oal1 1000. |
Ref | Expression |
---|---|
oa3-1to5.1 |
Ref | Expression |
---|---|
oa3-1to5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leid 148 | . . . . 5 | |
2 | oa3-1to5.1 | . . . . 5 | |
3 | 1, 2 | lel2or 170 | . . . 4 |
4 | 3 | lelan 167 | . . 3 |
5 | ax-a1 30 | . . . . . . . 8 | |
6 | 5 | ran 78 | . . . . . . 7 |
7 | 6 | ax-r5 38 | . . . . . 6 |
8 | ax-a2 31 | . . . . . 6 | |
9 | 7, 8 | ax-r2 36 | . . . . 5 |
10 | u1lemab 610 | . . . . 5 | |
11 | u1lemab 610 | . . . . 5 | |
12 | 9, 10, 11 | 3tr1 63 | . . . 4 |
13 | ancom 74 | . . . 4 | |
14 | ancom 74 | . . . 4 | |
15 | 12, 13, 14 | 3tr1 63 | . . 3 |
16 | 4, 15 | lbtr 139 | . 2 |
17 | lear 161 | . 2 | |
18 | 16, 17 | 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-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: (None) |
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