| Metamath Proof Explorer |
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| Description: Introduce conjunct to both sides of an implication. |
| Ref | Expression |
|---|---|
| anim1i.1 |
|
| Ref | Expression |
|---|---|
| anim1i |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | anim1i.1 |
. 2
| |
| 2 | id 59 |
. 2
| |
| 3 | 1, 2 | anim12i 333 |
1
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