BARROW AND TIPLER'S ANTHROPIC COSMOLOGICAL PRINCIPLE

Abstract. John D. Barrow and Frank J. Tipler's recently published Anthropic Cosmological Principle is an encyclopedic defense of melioristic evolutionary cosmology. They review the history of the idea from ancient times to the present, and defend both a "weak" version, and two "strong" versions of the anthropic principle. I argue the weak version of the anthropic principle is true and important, but that neither of the two strong versions are well grounded in fact. Their "final" anthropic principle is a revision of Teilhard de Chardin's evolutionary cosmology. They rectify Teilhard's factual errors but commit even more serious psychological and religious errors of their own.     

FREGE'S CONTEXT PRINCIPLE: AN INTERPRETATION

This paper presents a new interpretation of Frege's context principle on which it applies primarily to singular terms for abstract objects but not necessarily to singular terms for ordinary objects.     

FREGE'S CONCEPT PARADOX AND THE MIRRORING PRINCIPLE

Frege held that singular terms can refer only to objects, not to concepts. I argue that the counter-intuitive consequences of this claim ('the concept paradox') arise from Frege's mirroring principle that an incomplete expression can only express an incomplete sense and stand for an incomplete reference. This is not, as is sometimes thought, merely because predicates and singular terms cannot be intersubstituted salva veritate ( congruitate ). The concept paradox, properly understood, poses therefore a different, harder, challenge. An investigation of the foundations of the mirroring principle also sheds light on the role which language plays in Frege's epistemology of logic.     

THE WEAK ANTHROPIC PRINCIPLE AND THE DESIGN ARGUMENT

Abstract. The design argument for God's existence was critically assessed when in the growth of modern science the cognitive value of ideological categories was called into question. In recent discussions dealing with anthropic principles there has appeared a new version of the design argument, in which cosmic design is described without the use of ideological terms. The weak anthropic principle (WAP), a most critical version of all these principles, describes the fine-tuning of physical parameters necessary lo the genesis of carbon-based life. It defines no physical mechanisms of the observed coordination between physical parameters. If in a future unified physical theory such mechanisms are discovered, the weak anthropic principle should be replaced by the strong anthropic principle, which asserts the physical necessity of fine-tuning. Neither of the versions can be regarded as physically trivial unless one accepts strong assumptions of the existence of parallel universes. Consequently, a new version of the philosophical design argument can be developed on the basis of the weak anthropic principle.