Mathematics · Foundations & Logic
Nonstandard Analysis
A topic within Foundations & Logic, itself one of 12 topics in that field and part of Mathematics.
Reading for Foundations & Logic
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Primary sources and full treatments.
- PaperOn Computable Numbers, with an Application to the EntscheidungsproblemAlan Turing, 1936· 36 pages
Defines the universal machine and proves the halting problem undecidable — the founding document of computer science.