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Mirrors > Home > QLE Home > Th. List > lecon2 | Unicode version |
Description: Contrapositive for l.e. |
Ref | Expression |
---|---|
lecon2.1 |
Ref | Expression |
---|---|
lecon2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lecon2.1 | . . 3 | |
2 | ax-a1 30 | . . 3 | |
3 | 1, 2 | lbtr 139 | . 2 |
4 | 3 | lecon1 155 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 |
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-le1 130 df-le2 131 |
This theorem is referenced by: lecon3 157 cancellem 891 kb10iii 893 |
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