Determine the truth value of [(p → q) v (q → r)] ^ (r → s) when p and q and r are False, and s is True.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Determine the truth value of \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\) when \(p\) and \(q\) and \(r\) are False, and \(s\) is True.**

- [ ] True
- [ ] False

---

To solve this, let's break it down step by step considering the given truth values:

1. Evaluate \(p \rightarrow q\):
   - Since both \(p\) and \(q\) are False, \(p \rightarrow q\) is True (as False implies anything).

2. Evaluate \(q \rightarrow r\):
   - Since both \(q\) and \(r\) are False, \(q \rightarrow r\) is True (as False implies anything).

3. Now, evaluate \((p \rightarrow q) \lor (q \rightarrow r)\):
   - Both components are True, so the disjunction \((p \rightarrow q) \lor (q \rightarrow r)\) is True.

4. Evaluate \(r \rightarrow s\):
   - Since \(r\) is False and \(s\) is True, \(r \rightarrow s\) is True (as False implies anything).

5. Finally, evaluate \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\):
   - Both components are True, so the conjunction \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\) is True.

Therefore, the truth value of the given expression is:
- [x] True
- [ ] False
Transcribed Image Text:**Determine the truth value of \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\) when \(p\) and \(q\) and \(r\) are False, and \(s\) is True.** - [ ] True - [ ] False --- To solve this, let's break it down step by step considering the given truth values: 1. Evaluate \(p \rightarrow q\): - Since both \(p\) and \(q\) are False, \(p \rightarrow q\) is True (as False implies anything). 2. Evaluate \(q \rightarrow r\): - Since both \(q\) and \(r\) are False, \(q \rightarrow r\) is True (as False implies anything). 3. Now, evaluate \((p \rightarrow q) \lor (q \rightarrow r)\): - Both components are True, so the disjunction \((p \rightarrow q) \lor (q \rightarrow r)\) is True. 4. Evaluate \(r \rightarrow s\): - Since \(r\) is False and \(s\) is True, \(r \rightarrow s\) is True (as False implies anything). 5. Finally, evaluate \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\): - Both components are True, so the conjunction \([(p \rightarrow q) \lor (q \rightarrow r)] \land (r \rightarrow s)\) is True. Therefore, the truth value of the given expression is: - [x] True - [ ] False
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