What is the definition of valid?
a.) A group of statements, one or more of which - the premises- are claimed to provide support for one of the other statements - the conclusion
b.) When all the premises are true, then the conclusion has to be true
c.) All the premises are true and the conclusion is true
d.) When all the premises are true, then the conclusion is probably true
b.) When all the premises are true, then the conclusion has to be true
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a. 0 b. 1 c. 2 d. 3
(GvG) ? ~ ~ (G ? G) is a
A) biconditional B) disjunction C) conjunction D) negation
The inscription beneath the image on a one-dollar bill reads "Washington." Therefore, the image must be that of George Washington
What will be an ideal response?
Nobel Prize physicist Richard Feynman describes how, as a young boy, he figured
out how to fix a radio that buzzed for a few minutes after first being turned on. "I realized that one way it can happen is that the tubes are heating up in the wrong order. Then I said to myself, 'All right, take the tubes out, and reverse the order completely in the set.' So I changed the tubes around, stepped to the front of the radio, turned the thing on, and it's quiet as a lamb: it waits until it heats up, and then plays perfectly -- no noise."
What will be an ideal response?