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Identity, equivalence and isomorphism of problems

Published online by Cambridge University Press:  12 March 2014

Pavel Materna
Pavel Materna*
Affiliation:
BrnoCzechoslovakia
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Extract

Zdzislaw Cackowski [1], commenting on ideas of Rubinštejn [3], points out that it is possible for two questions with the same answer to have different “content”.1 In the present paper we shall adopt a more general semantical approach to the question of identity of problems and will distinguish between equivalence and isomorphism.

Type
Research Article
Information
The Journal of Symbolic Logic , Volume 34 , Issue 1 , 29 May 1969 , pp. 24 - 34
Copyright
Copyright © Association for Symbolic Logic 1969

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References

[1]Cackowski, Zdzislaw, Problemy i pseudoproblemy, Książka i Wiedza, 1964.Google Scholar
[2]Materna, Pavel, Redukce rozhodovacích problémů na zjištovací problémy (Reduction of decision problems to which-problems), Filosofický časopis 1968/1962.Google Scholar
[3]Rubinshtein, S. L., O myšlénii i putáh´ égo isslédovaniá, Moskva, 1958.Google Scholar