Arvo Jaakko Juhani Jalas (1920–1999)

Jaakko Hintikka

I agree with Jaakko Hintikka that the so-called “conjunction fallacy” of Kahneman and Tversky is no fallacy. I prefer a different explanation of the mistake made these authors (Levi 1985). Experimental subjects are invited to rank a set of propositions about Linda with respect to how probable, credible or likely they are on the basis of information given about a 31-year Linda. The task is to ra...

Jaakko Hintikka

The continuum hypothesis (CH) is crucial in the core area of set theory, viz. in the theory of the hierarchies of infinite cardinal and infinite ordinal numbers. It is crucial in that it would, if true, help to relate the two hierarchies to each other. It says that the second infinite cardinal number, which is known to be the cardinality of the first uncountable ordinal, equals the cardinality ...

JALAS Committee Symposium 1

― ― S22 ― The brain consists of many types of neurons with distinct molecular organizations. A neuron’s functional roles in the information processing have been revealed by investigating the relationship between the artificial stimulation of the neuron and its outcome. Optical stimulation methods have received much attention recently with the technological development of modern optics. They hav...

Jaakko Astola and Leonid Yaroslavsky

JALAS Committee Symposium 3

― ― S28 ― Use of common marmosets has been a marked increase in neuroscience and infectious disease research programs. There are often differences from facility to facility in the frequency of distinct entities, however, diarrhea, pulmonary involvement and kidney failure are the major disorders in captive marmoset colony. The poor physical condition of the highest frequency is diarrhea, which i...