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Mirrors > Home > QLE Home > Th. List > ax-oal4 | Unicode version |
Description: Orthoarguesian law (4-variable version). |
Ref | Expression |
---|---|
oal4.1 | |
oal4.2 |
Ref | Expression |
---|---|
ax-oal4 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wva | . . . 4 | |
2 | wvb | . . . 4 | |
3 | 1, 2 | wo 6 | . . 3 |
4 | wvc | . . . 4 | |
5 | wvd | . . . 4 | |
6 | 4, 5 | wo 6 | . . 3 |
7 | 3, 6 | wa 7 | . 2 |
8 | 1, 4 | wo 6 | . . . . . 6 |
9 | 2, 5 | wo 6 | . . . . . 6 |
10 | 8, 9 | wa 7 | . . . . 5 |
11 | 4, 10 | wo 6 | . . . 4 |
12 | 1, 11 | wa 7 | . . 3 |
13 | 2, 12 | wo 6 | . 2 |
14 | 7, 13 | wle 2 | 1 |
Colors of variables: term |
This axiom is referenced by: oa4cl 1027 oa43v 1028 oa3moa3 1029 |
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