An argument is invalid if and only if all the premises is true and the conclusion is false.
We can test the invalidity of the argument by assuming all the premises are true and seeing whether it is possible for the conclusion to be false. If the conclusion is possible to be false, then, the argument is invalid.
A valid argument, on the other hand, is valid if and only if it is necessary that:
1) if all of the premises are true, then the conclusion is true
2) if all of the premises are true, then the conclusion must be true
3) it is impossible that all the premises are true and the conclusion is false.
The answer is D
Explanation: In the second half of the passage it states that he haid sent them a "token of his very great affection". This of course means that the answer has to be D: the children’s host in Chesham still cared about them after they left.
False I believe! Hopefully this helps! :)
Answer:
As a matter of fact, I told her just yesterday about how they tease her child in school and how he is bullied by the bigger kids. ... The stories in her book are all matter of fact. I do not believe that children will like them. When it came to the matter of fact, he had nothing to say.
Explanation:
