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Mirrors > Home > QLE Home > Th. List > ax-r4 | Unicode version |
Description: Inference rule for ortholattices. |
Ref | Expression |
---|---|
r4.1 |
Ref | Expression |
---|---|
ax-r4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wva | . . 3 | |
2 | 1 | wn 4 | . 2 |
3 | wvb | . . 3 | |
4 | 3 | wn 4 | . 2 |
5 | 2, 4 | wb 1 | 1 |
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