Consider the set S of people living in the town of Newville. Which of the following correspondences specify a function? Explain.
(A) Each person in Newville (input) is paired with his or her mother (output).
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[Answer section:]
(A) This correspondence specifies a function; each person has exactly one mother.
@sinesalvatorem, saw this in my math textbook and thought of you.
(“But have you considered lesbians? Therefore, your argument is invalid.”)
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#I’m going to throw in a complaint while giving them a list of the typoes I’ve noticed in the first two chapters #apparently a bunch of errors snuck in during the ebook conversion process and they didn’t think to have it re-proofread afterward #they haven’t managed to get it proofread *properly* (i.e. by someone getting paid to comb through it carefully) #but they *did* fix the typoes in Appendix A I pointed out to them #so I’m going to keep them updated on the others I stumble across for the good of the class #(I’m not going to call them homophobic or anything) #(I’m going to say that the phrasing was ambiguous about whether to account for the possibility of lesbians and it confused me) #(which is true) #oh look an original post #adventures in University Land
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