An apparent inadequacy of the velocity addition theorem in handling a Fizeau (like) experiment beyond the resonance frequence is shown not to be a true failing. The proof consists in showing that the invariance of the signal velocity is unrelated to its maximality. Next, Lorentz transformations which connect frames moving with supersignal velocity to those of subsignal velocity are derived, taking a cue from the acoustic case. Methods are also suggested for laboratory verification of the theory.

A formalism is developed which admits particles faster than light and reference frames faster than light and as fast as light. It is fully consistent with the physical principles of special relativity. The necessity of introducing imaginary quantities does not arise. It does not encounter any difficulties with the principle of causality if it is reasonably interpreted.

Shankara’s Advaita Vedanta has been very influential in India, both as a well-articulated philosophical system and a weighty theological position. However, Advaita’s supposedly dismissive attitude toward the world always remained its Achilles’ heel. Thinkers whose sympathies lie firmly with Advaita are at pains to give a philosophically satisfactory explanation of the ontological status of the world. This article briefly discusses the efforts and resultant views of four such contemporary thinkers – K.C. Bhattacharyya, S. Radhakrishnan, P.T. Raju, and Richard De (...) Smet. (shrink)

Memoirs and papers presented at a conference held on the occasion of the 90th birthday of the Mongolian philosopher Ts. Balkhaajav.

Logical Forms explains both the detailed problems involved in finding logical forms and also the theoretical underpinnings of philosophical logic. In this revised edition, exercises are integrated throughout the book. The result is a genuinely interactive introduction which engages the reader in developing the argument. Each chapter concludes with updated notes to guide further reading.

T. S. Champlin; VII*—Tendencies, Proceedings of the Aristotelian Society, Volume 91, Issue 1, 1 June 1991, Pages 119–134, https://doi.org/10.1093/aristotelian/9.

Книга предназначена для философов, правоведов и специалистов по естественным наукам, а также для заинтересованных читателей.

В монографии рассматриваются возможности применения обобщенной релевантной логики к проблеме моделирования рассуждений. Для научных работников, аспирантов, студентов, специалистов в философской логике, аргументации и компьютерной науке.

Russian-Mongolian dictionary of philosophical terms.

T. S. Champlin; VII*—Tendencies, Proceedings of the Aristotelian Society, Volume 91, Issue 1, 1 June 1991, Pages 119–134, https://doi.org/10.1093/aristotelian/9.

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We investigate the class of those algebras in which is a de Morgan algebra, is a quasi-Stone algebra, and the operations \ and \ are linked by the identity x**º = x*º*. We show that such an algebra is subdirectly irreducible if and only if its congruence lattice is either a 2-element chain or a 3-element chain. In particular, there are precisely eight non-isomorphic subdirectly irreducible Stone de Morgan algebras.