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Mirrors > Home > QLE Home > Th. List > oal1 | Unicode version |
Description: Orthoarguesian law - version derived from version. |
Ref | Expression |
---|---|
oal1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oal2 999 | . 2 | |
2 | i1i2 266 | . . 3 | |
3 | df-a 40 | . . . 4 | |
4 | i1i2 266 | . . . . 5 | |
5 | 2, 4 | 2an 79 | . . . 4 |
6 | 3, 5 | 2or 72 | . . 3 |
7 | 2, 6 | 2an 79 | . 2 |
8 | 1, 7, 4 | le3tr1 140 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 wi1 12 wi2 13 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-3oa 998 |
This theorem depends on definitions: df-a 40 df-i1 44 df-i2 45 df-le1 130 df-le2 131 |
This theorem is referenced by: (None) |
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