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Counterex & Invalidity - Coggle Diagram
Counterex & Invalidity
Ex from homework: "It is not wrong to kill spiders. But if spiders have eternal souls, then it is wrong to kill them. Thus, it is false that spiders have eternal souls".
- Not A. 2. If B, then A. So, 3. Not B (Modus Tollens)
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Categorical Argument:
Some arguments contain categorical statements: a statement that relates two classes (sets) or categories of things
Ex: All dogs are animals, no dogs are cats, some dogs are collies
- All elms are trees. 2. All trees are plants. So, 3. All elms are plants
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Form: 1. All A are B. 2. All B are C. So, All A are C.
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