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billwadge.com | ||
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jdh.hamkins.org
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| | | | Philosophy of Mathematics, Exam Paper 122, Oxford University Wednesdays 12-1 during term, Radcliffe Humanities Lecture Room Joel David Hamkins, Professor of Logic Lucy, Charles - Personifications o... | |
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xorshammer.com
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| | | | Let $latex \mathrm{PA}$ be Peano Arithmetic. Gödel's Second Incompleteness Theorem says that no consistent theory $latex T$ extending $latex \mathrm{PA}$ can prove its own consistency. (I'll write $latex \mathrm{Con}(T)$ for the statement asserting $latex T$'s consistency; more on this later.) In particular, $latex \mathrm{PA} + \mathrm{Con}(\mathrm{PA})$ is stronger than $latex \mathrm{PA}$. But certainly, given that... | |
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rjlipton.com
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| | | | An approach to consistency that could work... Kurt Gödel is feeling bored. Not quite in our English sense of "bored": German has a word Weltschmerz meaning "world-weariness." In Kurt's case it's Überweltschmerz. We have tried for over a month to get him to do another interview like several times before, but he keeps saying there's... | |
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6mmwargaming.home.blog
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| | These models appeared on my last completed painting tray and a few people commented on them, so I thought I'd create a short post on them. The Ground Zero Games (GZG) models are the DSM-102 AV6 Troop Transport VTOL which I knew I had to buy when I saw photos of them online. The design... |