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Related theorems GIF version |
| Description: Infer conjunction of premises. |
| Ref | Expression |
|---|---|
| pm3.2i.1 | ⊢ φ |
| pm3.2i.2 | ⊢ ψ |
| Ref | Expression |
|---|---|
| pm3.2i | ⊢ (φ ⋀ ψ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pm3.2i.1 | . 2 ⊢ φ | |
| 2 | pm3.2i.2 | . 2 ⊢ ψ | |
| 3 | pm3.2 283 | . 2 ⊢ (φ → (ψ → (φ ⋀ ψ))) | |
| 4 | 1, 2, 3 | mp2 43 | 1 ⊢ (φ ⋀ ψ) |