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Related theorems Unicode version |
| Description: Inference conjoining a theorem to left of consequent in an implication. |
| Ref | Expression |
|---|---|
| jctil.1 |
|
| jctil.2 |
|
| Ref | Expression |
|---|---|
| jctil |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jctil.2 |
. . 3
| |
| 2 | 1 | a1i 8 |
. 2
|
| 3 | jctil.1 |
. 2
| |
| 4 | 2, 3 | jca 310 |
1
|