A CORRECTION OF KELLEY'S PROOF ON THE EQUIVALENCE BETWEEN THE TYCHONOFF PRODUCT THEOREM AND THE AXIOM OF CHOICE

Abstract

The Tychonoff product theorem is one of the most fundamental theorems in general topology. As is well-known, the proof of the Tychonoff product theorem relies on the axiom of choice. The converse was also conjectured by S. Kakutani and Kelley [1] then resolved this conjecture in his historical short note on 1950. However, the original proof due to Kelley has a flaw. According to this observation, we provide a correction of the proof in this paper.

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