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Steen, Lynn Arthur – Science, 1975
Reports on two types of unsolvability in mathematics. One is an instance of impossibility and the second is a judgment of undecidability. Presents a number of examples of undecidable propositions. (GS)
Descriptors: Algorithms, Mathematical Concepts, Mathematical Logic, Mathematics Education
Peer reviewed Peer reviewed
Tversky, Amos; Kahneman, Daniel – Science, 1981
Presents evidence that the psychological principles that govern the perception of decision problems and evaluation of probabilities and outcomes produce predictable shifts of preference when the same problem is framed in different ways. (Author/SK)
Descriptors: Cognitive Processes, Conflict Resolution, Decision Making, Higher Education