Examlex
determine whether the given argument is valid or invalid. If it is valid, provide a derivation of the conclusion from the premises. If it is invalid, provide a counterexample.
-1. (∀x)(Ax ⊃ Bx) ⊃ (∃x)Cx
2. (∃x)(Ax • ∼Bx)
3. (∀x)(Dx ⊃ Bx) / (∀x)(Dx ⊃ Cx)
Large Gathering
An event where a significant number of people come together, which can be for various purposes such as celebrations, protests, or meetings.
Smoking
The act of inhaling and exhaling the smoke of burning tobacco or other substances, often associated with health risks.
Drying Meat
A method of preservation that involves removing moisture from meat to inhibit the growth of microorganisms.
Building Things
The act or process of constructing, assembling, or creating structures, objects, or systems.
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