Category: Logic and Mathematics
Keywords: syllogism, premisses, valid, logic, inferences, deductive, validity, inference, deduction, premiss, induction, calculus, premises, infer, formal
Number of Articles: 414
Percentage of Total: 1.3%
Weighted Number of Articles: 466.3
Percentage of Total: 1.4%
Mean Publication Year: 1959.7
Weighted Mean Publication Year: 1963.8
Median Publication Year: 1963
Modal Publication Year: 1971
Topic with Most Overlap: Arguments (0.0437)
Topic this Overlaps Most With: Propositions and Implications (0.0551)
Topic with Least Overlap: Evolutionary Biology (0.00042)
Topic this Overlaps Least With: Feminism (0.00083)
This is a hard to classify topic. On the one hand, it’s clearly about logic, so that’s easy enough. But everything else about it is a little odd. The graphs don’t show much life after 1920. But it ends up being either the twenty-seventh or fifteenth largest topic, depending on which measure is used. The measure that makes it fifteenth is the one the graphs are showing. Its top keyword is syllogism, but most of the characteristic articles are very modern pieces that barely mention the word. In fact, the word mostly vanishes from the journals after the 1960s.
Part of what’s happened here is that while the model has decided to treat talk of implication back in topic 7 differently to talk here of validity, it’s thrown some very old notions in with this topic. That’s not absurd, but it does lead to some odd results. If squinting, a brief uptick can be seen at the end of the graph. But a big part of the story here is that this kind of work, to the extent that it’s supported by the discipline at all, has largely moved to more specialist journals. So not as much of it is seen in these journals as in the past. And it would take a broader study to see what happens when specialist logic journals are added to the mix.