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Mirrors > Home > QLE Home > Th. List > u1lem9b | Unicode version |
Description: Lemma used in study of orthoarguesian law. Equation 4.11 of [MegPav2000] p. 23. This is the second part of the inequality. |
Ref | Expression |
---|---|
u1lem9b |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | leo 158 | . 2 | |
2 | df-i1 44 | . . 3 | |
3 | 2 | ax-r1 35 | . 2 |
4 | 1, 3 | lbtr 139 | 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-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-i1 44 df-le1 130 df-le2 131 |
This theorem is referenced by: u1lem9ab 779 kb10iii 893 oasr 926 axoa4 1034 lem4.6.3le2 1083 |
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