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Mirrors > Home > QLE Home > Th. List > lel2or | Unicode version |
Description: Disjunction of 2 l.e.'s. |
Ref | Expression |
---|---|
lel2.1 | |
lel2.2 |
Ref | Expression |
---|---|
lel2or |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lel2.1 | . . 3 | |
2 | lel2.2 | . . 3 | |
3 | 1, 2 | le2or 168 | . 2 |
4 | oridm 110 | . 2 | |
5 | 3, 4 | lbtr 139 | 1 |
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