From: Steve Stevenson <fatmarauder@mac.com>
To: Andrew Stacey <andrew.stacey@math.ntnu.no>, <categories@mta.ca>
Subject: Re: Functions in programming
Date: Sat, 14 Mar 2009 10:58:57 -0400 [thread overview]
Message-ID: <E1LiqQW-0006eP-I3@mailserv.mta.ca> (raw)
All us Fortran II survivors know this issue well ... This is the
"function" versus "routine" argument: (1) a routine can have no
arguments but (2) can't return a value. This where CALL comes from.
Sent from my iPhone
Steve Stevenson
On Mar 13, 2009, at 7:29, Andrew Stacey <andrew.stacey@math.ntnu.no>
wrote:
> (a lot snipped)
> In class today I was discussing functions with domain the empty
> set. The
> students don't have much background in formal set theory (and none
> in category
> theory though I'm doing my best to sneak it in where I can) so they
> were
> trying to get to grips with the idea that the _are_ functions from
> the empty
> set, but just not very many of them.
>
>
next reply other threads:[~2009-03-14 14:58 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-14 14:58 Steve Stevenson [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-03-21 16:06 Bill Lawvere
2009-03-20 21:18 Robin Cockett
2009-03-19 15:37 Peter Selinger
2009-03-19 15:37 Peter Selinger
2009-03-19 14:18 Peter Selinger
2009-03-19 14:11 MigMit
2009-03-19 2:32 Robin Cockett
2009-03-18 15:34 Bill Lawvere
2009-03-17 23:06 Robin Cockett
2009-03-17 5:17 Nathan Bloomfield
2009-03-16 15:12 Andrew Stacey
2009-03-16 11:37 Miles Gould
2009-03-16 9:27 Tom Hirschowitz
2009-03-16 5:52 Vaughan Pratt
2009-03-16 4:25 Daniel Schüssler
2009-03-15 23:55 Thorsten Altenkirch
2009-03-15 22:18 Robin Cockett
2009-03-14 19:52 Ellis D. Cooper
2009-03-14 17:39 Thorsten Altenkirch
2009-03-14 14:51 Miguel Mitrofanov
2009-03-14 9:51 Luis Barbosa
2009-03-14 6:02 Vaughan Pratt
2009-03-14 3:38 Fred E.J. Linton
2009-03-14 3:22 Michael Shulman
2009-03-14 2:21 Charles Wells
2009-03-13 11:29 Andrew Stacey
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