## Proceedings of the International School of Physics "Enrico Fermi.", Volume 72N. Zanichelli, 1979 - Nuclear physics |

### From inside the book

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Page 163

Physical truth and

thought to be the most exact of natural sciences, and to be perfectly reliable in a

great number of applications. Nevertheless, many people have rather strange

ideas ...

Physical truth and

**physical theories**. 3'1. Truth in physics. - Physics is widelythought to be the most exact of natural sciences, and to be perfectly reliable in a

great number of applications. Nevertheless, many people have rather strange

ideas ...

Page 169

does not rule out the possibility that the logic of a

classical logic CL. For it is quite possible that all CL laws (expressed in the

language of T) are true in any physical model M of T, and consequently valid in T.

3'2.

does not rule out the possibility that the logic of a

**physical theory**T be theclassical logic CL. For it is quite possible that all CL laws (expressed in the

language of T) are true in any physical model M of T, and consequently valid in T.

3'2.

Page 170

adequate formal tool for the analysis of the interconnections between concrete

considered weaker than a theory Tt, when the domain of validity of T, is included

in the ...

adequate formal tool for the analysis of the interconnections between concrete

**physical theories**. From an intuitive point of view, a**physical theory**T, isconsidered weaker than a theory Tt, when the domain of validity of T, is included

in the ...

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### Contents

E Amaldi Radioactivity a pragmatic pillar of probabilistic | 1 |

Statistical fluctuations | 10 |

Final remarks | 21 |

Copyright | |

24 other sections not shown

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### Common terms and phrases

3-geometry algebra applied assertion atoms axioms Boolean Borel field Borel sets calculus concept conditional probability conditionalization consider corresponding countable course defined definition denote derived deterministic dialog dialog-game disjoint dynamics edited Einstein elements equation equivalent exists experiment finite formal function geometry given Gleason's theorem Hence Hilbert space implies induction initial interaction interpretation irreversible Journ linear magnitude Math mathematical means Neumann non-Boolean notion observable orthogonal orthomodular lattice particle photon Phys physical quantity physical system physical theories physicists positive precision probabilistic probability measure probability space probability theory problem procedure quantum logic quantum mechanics quantum theory quantum-logical question radioactive random variable real numbers relation relative frequency relf represented respect result rule sequence space-time special relativity spin statistical operator subset subspace superspace theorem tion transformation truth universal constants vector velocity von Neumann algebra zero