|   | Mathbox for Jeff Hankins | < Previous  
      Next > Nearby theorems | |
| Mirrors > Home > MPE Home > Th. List > Mathboxes > imp5p | Structured version Visualization version GIF version | ||
| Description: A triple importation inference. (Contributed by Jeff Hankins, 8-Jul-2009.) | 
| Ref | Expression | 
|---|---|
| 3imp5.1 | ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → (𝜏 → 𝜂))))) | 
| Ref | Expression | 
|---|---|
| imp5p | ⊢ (𝜑 → (𝜓 → ((𝜒 ∧ 𝜃 ∧ 𝜏) → 𝜂))) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | 3imp5.1 | . . . 4 ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → (𝜏 → 𝜂))))) | |
| 2 | 1 | com52l 102 | . . 3 ⊢ (𝜒 → (𝜃 → (𝜏 → (𝜑 → (𝜓 → 𝜂))))) | 
| 3 | 2 | 3imp 1110 | . 2 ⊢ ((𝜒 ∧ 𝜃 ∧ 𝜏) → (𝜑 → (𝜓 → 𝜂))) | 
| 4 | 3 | com3l 89 | 1 ⊢ (𝜑 → (𝜓 → ((𝜒 ∧ 𝜃 ∧ 𝜏) → 𝜂))) | 
| Colors of variables: wff setvar class | 
| Syntax hints: → wi 4 ∧ w3a 1086 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 | 
| This theorem depends on definitions: df-bi 207 df-an 396 df-3an 1088 | 
| This theorem is referenced by: (None) | 
| Copyright terms: Public domain | W3C validator |