fɔːɹ sˈɪmɪlɚ ɹˈiːzənz, ɪf ˈɛks ɪz kˈaʊntəbəl, ɪɾ ɪz ɐ lˈɪndɪlˌɜːf spˈeɪs; ænd ɪf ˈɛks ɪz ʌŋkˈaʊntəbəl, ɪɾ ɪz nˌɑːt lˈɪndɪlˌɜːf.
For similar reasons, if X is countable, it is a Lindelöf space; and if X is uncountable, it is not Lindelöf.