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Mirrors > Home > ILE Home > Th. List > anandi | GIF version |
Description: Distribution of conjunction over conjunction. (Contributed by NM, 14-Aug-1995.) |
Ref | Expression |
---|---|
anandi | ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) ↔ ((𝜑 ∧ 𝜓) ∧ (𝜑 ∧ 𝜒))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anidm 376 | . . 3 ⊢ ((𝜑 ∧ 𝜑) ↔ 𝜑) | |
2 | 1 | anbi1i 431 | . 2 ⊢ (((𝜑 ∧ 𝜑) ∧ (𝜓 ∧ 𝜒)) ↔ (𝜑 ∧ (𝜓 ∧ 𝜒))) |
3 | an4 520 | . 2 ⊢ (((𝜑 ∧ 𝜑) ∧ (𝜓 ∧ 𝜒)) ↔ ((𝜑 ∧ 𝜓) ∧ (𝜑 ∧ 𝜒))) | |
4 | 2, 3 | bitr3i 175 | 1 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) ↔ ((𝜑 ∧ 𝜓) ∧ (𝜑 ∧ 𝜒))) |
Colors of variables: wff set class |
Syntax hints: ∧ wa 97 ↔ wb 98 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 |
This theorem depends on definitions: df-bi 110 |
This theorem is referenced by: anandi3 898 moanim 1974 difundi 3189 inrab 3209 uniin 3600 xpcom 4864 fin 5076 fndmin 5274 nnaord 6082 ltexprlemdisj 6704 |
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