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| Mirrors > Home > QLE Home > Th. List > an1 | Unicode version | ||
| Description: Conjunction with 1. |
| Ref | Expression |
|---|---|
| an1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-a 40 |
. 2
| |
| 2 | df-f 42 |
. . . . . 6
| |
| 3 | 2 | ax-r1 35 |
. . . . 5
|
| 4 | 3 | lor 70 |
. . . 4
|
| 5 | or0 102 |
. . . 4
| |
| 6 | 4, 5 | ax-r2 36 |
. . 3
|
| 7 | 6 | con2 67 |
. 2
|
| 8 | 1, 7 | ax-r2 36 |
1
|
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