On the Mechanization of Real Analysis in Isabelle/HOL
Our recent, and still ongoing, development of real analysis in Isabelle/HOL is presented and compared, whenever instructive, to the one present in the theorem prover HOL. While most existing mechanizations of analysis only use the classical є and δ approach, ours uses notions from both Nonstandard Analysis and classical analysis. The overall result is an intuitive, yet rigorous, development of real analysis, and a relatively high degree of proof automation in many cases.
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