ORIGIN OF THE ESSAYS ........................................... vь
INTRODUCTION ................................................... ix
1 "Is Logic the Key to all Good Reasoning?" .................... 1
2 "The Role of Logic in Argumentation" ........................ 25
3 (with Ilpo Halonen and Arto Mutanen)
"Interrogative Logic as a General Theory of Reasoning"....... 47
4 "What Is Abduction? The Fundamental Problem of
Contemporary Epistemology" .................................. 91
5 "True and False Logics of Scientific Discovery" ............ 115
6 "A Spectrum of Logic of Questioning" ....................... 127
7 "What Is the Logic of Experimental Inquiry?" ............... 143
8 "The Concept of Induction in the Light of the
Interrogative Approach to Inquiry" ......................... 161
9 (with Ilро Halonen)
"Semantics and Pragmatics for Why-Questions" ............... 183
10 "The Varieties of Information and Scientific
Explanation" ............................................... 205
11 "On the Incommensurability of Theories" .................... 227
12 "Theory-Ladenness of Observations as a Test Case of
Kuhn's Approach to Scientific Inquiry" ..................... 241
13 "Ramsey Sentences and the Meaning of Quantifiers" .......... 251
14 "Towards a General Theory of Identifiability" .............. 267
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