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Extended real number line

extension of the reals by +∞ and −∞.

Pronunciation
/ɛkˈstɛndɪd reɪˈɑːl ˈnʌmbə lʌɪn/
/ˌɪkˈstɛndəd ˈriəl ˈnəmbər laɪn/
Categories
real number