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Mirrors > Home > MPE Home > Th. List > pm5.32i | Structured version Visualization version GIF version |
Description: Distribution of implication over biconditional (inference form). (Contributed by NM, 1-Aug-1994.) |
Ref | Expression |
---|---|
pm5.32i.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
Ref | Expression |
---|---|
pm5.32i | ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜑 ∧ 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm5.32i.1 | . 2 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
2 | pm5.32 573 | . 2 ⊢ ((𝜑 → (𝜓 ↔ 𝜒)) ↔ ((𝜑 ∧ 𝜓) ↔ (𝜑 ∧ 𝜒))) | |
3 | 1, 2 | mpbi 229 | 1 ⊢ ((𝜑 ∧ 𝜓) ↔ (𝜑 ∧ 𝜒)) |
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