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Publication:3137391
zbMath0784.03033MaRDI QIDQ3137391
Publication date: 9 November 1993
Full work available at URL: https://eudml.org/doc/21897
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Commutative semigroups (20M14) Metric spaces, metrizability (54E35) Nonclassical and second-order set theories (03E70)
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