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Mirrors > Home > QLE Home > Th. List > oatr | Unicode version |
Description: Reverse transformation lemma for studying the orthoarguesian law. |
Ref | Expression |
---|---|
oatr.1 |
Ref | Expression |
---|---|
oatr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leo 158 | . . . . 5 | |
2 | oatr.1 | . . . . . 6 | |
3 | df-i1 44 | . . . . . . 7 | |
4 | ax-a1 30 | . . . . . . . . 9 | |
5 | 4 | ax-r5 38 | . . . . . . . 8 |
6 | 5 | ax-r1 35 | . . . . . . 7 |
7 | 3, 6 | ax-r2 36 | . . . . . 6 |
8 | 2, 7 | lbtr 139 | . . . . 5 |
9 | 1, 8 | lel2or 170 | . . . 4 |
10 | 9 | lelan 167 | . . 3 |
11 | omlan 448 | . . 3 | |
12 | 10, 11 | lbtr 139 | . 2 |
13 | lear 161 | . 2 | |
14 | 12, 13 | 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 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 |
This theorem is referenced by: oa4dtoc 969 |
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