Friday, May 28, 2004
The Status of Logic in Philosophy
http://www.ucalgary.ca/~rzach/logblog/2004/05/status-of-logic-in-philosophy.html
It is a commonly accepted view (among logicians working in philosophy
[departments]) that while logic was considered central to philosophy
in the mid-20th century, it has since moved closer and closer to the
margins. It is said, e.g., that while in the 1950s and 60s it was
common to find "pure" logicians working in philosophy departments (and
consequently, that as a pure logician you could find a job in a
philosophy department), this is no longer the case to a similar
extent. It is also believed that while a few decades ago logicians
enjoyed a reputation (among philosophers) as people who were doing
important (and hard) work, now much of logic is just not considered
philosophy anymore. I wonder how accurate this cluster of suspicions
(henceforth "the belief") actually is .
Anecdotal evidence certainly suggests that it's difficult to find a
job as a logician. But is it more difficult than finding a job,
period? And is it more difficult now than it was 30 or 40 years ago?
Anecdotal evidence also suggests that logic is not held in
particularly high regard among some (many?) philosophers. But is this
more true now than it was 30 or 40 years ago?
These are difficult questions to answer; difficult to answer, that is,
other than by adducing more anecdotal evidence. One would think that
if the belief is correct, then the number of logic jobs advertised
should have declined over the last 30 years (as a percentage of all
philosophy jobs). One would also think that the philosophy curriculum
would have changed reflecting the changing status of logic in
philosophy as a whole. Thirdly, it would likely be the case that as
fewer logicians were trained and hired by philosophy departments,
there should be fewer logic papers published by logicians in
philosophy departments.
I have no idea of how to come up with hard data on the first two
cases, but I'd be interested to hear anecdotal evidence, especially on
the second point. Does your department offer fewer advanced logic
courses now than it did 20 or 30 years ago? Did your department use to
require a graduate logic course of its grad students but no longer
does?
There is some hard data on the third issue, thanks to the Web of
Science. I've done some searches on logic papers in the past three
decades. The data is a little skewed, I'm sure, since they don't have
extensive coverage of the period 1975-1984, but the results are
nevertheless interesting. I tried to compare output by people working
in philosophy departments (in the US, Canada, the UK, Ireland,
Australia, and New Zealand) in logic journals (The Journal and
Bulletin of Symbolic Logic, and the Journal of Philosophical Logic).
The results are interesting:
1975-1984 1985-1994 1995-2004
Journal of Symbolic Logic +
Bulletin of Symbolc Logic 10/1473
0.6% 50/1579
3% 53/1040
5%
Journal of Philosophical Logic 32/252
12% 89/196
45% 79/243
40%
Total logic papers 52/3,406
1.5% 202/8,963
2% 385/10,156
3%
In the first two lines, I gave the ratio of papers by authors in US/
Canadian/ British/ Irish/ Australian/ New Zealand philosophy
departments to the total number of papers in the respective journals.
In the last line, you have the ratio of logic papers to all papers in
the index (by authors in US/Canadian etc. departments). It looks like
the output of logicians in English-speaking philosophy departments has
increased since the 1970s.
I conjecture that what happened in philosophy vis-à-vis logic is not
that logic has become (seen as) less central, but that as
philosophical logic has matured over the last 50 years, it has been
integrated into the appropriate areas of philosophy. So perhaps it
isn't logic per se that's seen as less central to philosophy, but the
kind of logic you could still commonly find being done in philosophy
departments in the 50s and 60s, which wasn't that much different from
the logic done in math departments.
UPDATE: Updated the table to include New Zealand, as well as Ireland,
Scotland, and Wales.
UPDATE: Followup posted here.
UPDATE: More followups:
Thoughts on logic in philosophy grad programs
Survey of logic in US grad programs
Brian Weatherson's JfP analysis and logic jobs
Session on logic in graduate philosophy programs at the ASL Spring
Meeting/APA Pacific
Logic in America vs Logic in Europe
posted by Richard Zach @ 11:16 AM 16 comments | Trackback (0)