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| Mirrors > Home > NFE Home > Th. List > 3oran | Unicode version | ||
| Description: Triple disjunction in terms of triple conjunction. (Contributed by NM, 8-Oct-2012.) |
| Ref | Expression |
|---|---|
| 3oran |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3ioran 950 |
. . 3
| |
| 2 | 1 | con1bii 321 |
. 2
|
| 3 | 2 | bicomi 193 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3or 935 df-3an 936 |
| This theorem is referenced by: (None) |
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