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Related theorems Unicode version |
| Description: Deduction adding a consequent to both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| imbid.1 |
|
| Ref | Expression |
|---|---|
| imbi1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imbid.1 |
. . . 4
| |
| 2 | 1 | notbid 356 |
. . 3
|
| 3 | 2 | imbi2d 380 |
. 2
|
| 4 | con34b 355 |
. 2
| |
| 5 | con34b 355 |
. 2
| |
| 6 | 3, 4, 5 | 3bitr4g 351 |
1
|