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- From: martinc@hatteras.cs.unc.edu (Charles R. Martin)
- Newsgroups: sci.logic
- Subject: Re: Are all crows black? => Logic as an essential subject?
- Message-ID: <MARTINC.92Nov13143221@hatteras.cs.unc.edu>
- Date: 13 Nov 92 19:32:21 GMT
- References: <BxGFw2.AJv@cck.coventry.ac.uk> <1992Nov11.225953.231@galois.mit.edu>
- <MARTINC.92Nov12021908@hatteras.cs.unc.edu>
- <1duqtpINNjl1@columbia.cs.ubc.ca>
- Sender: news@cs.unc.edu
- Organization: UNC Department of Computer Science
- Lines: 23
- In-reply-to: kean@cs.ubc.ca's message of 12 Nov 92 23:55:37 GMT
-
- In article <1duqtpINNjl1@columbia.cs.ubc.ca> kean@cs.ubc.ca (Alex Kean) writes:
-
- In article <MARTINC.92Nov12021908@hatteras.cs.unc.edu> martinc@hatteras.cs.unc.
- >
- >Let's not put Will off of syllogistic logic, though, please. There are
- >too many people graduating as it is without knowing the difference
- >between "All men are mortal/Socrates is a man -> Socrates is mortal" and
- >"All men are mortal/Socrates is mortal -> Socrates is a man".
- >
-
- I have not graduated yet, what is the difference?
-
- Please god, tell me he's kidding.
-
- On the off chance you're not kidding, let's try another example: if I
- say "all trees are green" and I look at a green shirt, can I conclude
- that since it's green, it must be a tree?
- --
- Charles R. Martin/(Charlie)/martinc@cs.unc.edu
- Dept. of Computer Science/CB #3175 UNC-CH/Chapel Hill, NC 27599-3175
- 3611 University Dr #13M/Durham, NC 27707/(919) 419 1754
- "Oh God, please help me be civil in tongue, pure in thought, and able
- to resist the temptation to laugh uncontrollably. Amen." -- Rob T
-