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University of Cambridge > Talks.cam > The Archimedeans (CU Mathematical Society) > Logic and the Physical World: Topos theory as a foundation for physics

## Logic and the Physical World: Topos theory as a foundation for physicsAdd to your list(s) Download to your calendar using vCal - Professor Christopher Isham (Imperial College)
- Friday 13 December 1901, 20:45-20:45
- Centre for Mathematical Sciences, Cambridge.
If you have a question about this talk, please contact archim-publicity. This talk has been canceled/deleted Classical physics and ‘classical’ mathematics (ie, mathematics based on set theory) fit together naturally with the Boolean algebra of the subsets of a set serving perfectly as a model for propositions in physics. However, this is known to fail in quantum theory, where the inherent logic is non-distributive. In this lecture I will describe some recent work that aims to construct a new way of looking at quantum mechanics in which the theory ‘looks like’ classical physics, but in a topos other than the topos of sets. In fact, we go well beyond this and claim that any theory of physics should/can be expressed in a pseudo-classical form in which each system has its own topos in which the physical theory is formulated. This talk is part of the The Archimedeans (CU Mathematical Society) series. ## This talk is included in these lists:This talk is not included in any other list Note that ex-directory lists are not shown. |
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