Use Euler diagrams to determine whether the following argument is valid or invalid. All fish are cold blooded creatures. A trout is one of the cold blooded creatures. Therefore, a trout is one of the fish. Choose the correct answer below. Invalid Valid

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Analyzing Arguments with Euler Diagrams**

**Argument:**

1. All fish are cold-blooded creatures.
2. A trout is one of the cold-blooded creatures.
3. Therefore, a trout is one of the fish.

**Task:**

Use Euler diagrams to determine whether this argument is valid or invalid.

**Explanation:**

To analyze this argument, we can use Euler diagrams, which are visual representations of logical relationships.

In this scenario, we have three categories:
- Fish
- Cold-blooded creatures
- Trout

1. **Fish**: This category is entirely within the category of cold-blooded creatures.
2. **Cold-blooded Creatures**: This is a larger category that includes all fish. However, it also may include other animals that are not fish.

The argument assumes that because a trout is a cold-blooded creature, it must also be a fish. However, the statement "a trout is one of the cold-blooded creatures" does not necessarily mean it is a fish, because cold-blooded creatures can include many other non-fish animals.

**Conclusion:**

The conclusion drawn in the argument ("Therefore, a trout is one of the fish") is not valid based solely on the premises provided. While a trout is indeed a fish, this argument does not logically prove that fact.

**Choose the correct answer below:**

- ⃝ Invalid
- ⃝ Valid

The correct choice is "Invalid" because the argument does not correctly establish that a trout must be a fish based solely on the premises given.
Transcribed Image Text:**Analyzing Arguments with Euler Diagrams** **Argument:** 1. All fish are cold-blooded creatures. 2. A trout is one of the cold-blooded creatures. 3. Therefore, a trout is one of the fish. **Task:** Use Euler diagrams to determine whether this argument is valid or invalid. **Explanation:** To analyze this argument, we can use Euler diagrams, which are visual representations of logical relationships. In this scenario, we have three categories: - Fish - Cold-blooded creatures - Trout 1. **Fish**: This category is entirely within the category of cold-blooded creatures. 2. **Cold-blooded Creatures**: This is a larger category that includes all fish. However, it also may include other animals that are not fish. The argument assumes that because a trout is a cold-blooded creature, it must also be a fish. However, the statement "a trout is one of the cold-blooded creatures" does not necessarily mean it is a fish, because cold-blooded creatures can include many other non-fish animals. **Conclusion:** The conclusion drawn in the argument ("Therefore, a trout is one of the fish") is not valid based solely on the premises provided. While a trout is indeed a fish, this argument does not logically prove that fact. **Choose the correct answer below:** - ⃝ Invalid - ⃝ Valid The correct choice is "Invalid" because the argument does not correctly establish that a trout must be a fish based solely on the premises given.
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