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| Mirrors > Home > ILE Home > Th. List > falimd | GIF version | ||
| Description: The truth value ⊥ implies anything. (Contributed by Mario Carneiro, 9-Feb-2017.) | 
| Ref | Expression | 
|---|---|
| falimd | ⊢ ((𝜑 ∧ ⊥) → 𝜓) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | falim 1378 | . 2 ⊢ (⊥ → 𝜓) | |
| 2 | 1 | adantl 277 | 1 ⊢ ((𝜑 ∧ ⊥) → 𝜓) | 
| Colors of variables: wff set class | 
| Syntax hints: → wi 4 ∧ wa 104 ⊥wfal 1369 | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 | 
| This theorem depends on definitions: df-bi 117 df-tru 1367 df-fal 1370 | 
| This theorem is referenced by: bj-axemptylem 15538 | 
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