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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1 Best Answer
open interval example - (4,5) . closed interval - example - [4,5]
Thank you sir, can both closed set and open set be finite intervals? "All infinite sets are of infinite intervals and all finite sets are of finite intervals".Is this correct?
yes , closed set and open set can be finite intervals , eg . (4,5) is open set and of finite intervals..
similarly [4,5] is closed set if finite interval..
there is language problem in your second statement , there is difference between sets and intervals...a finite interval (0,1) is uncountable set
Sir all finite intervals of an open set like (2,4),(3,4), etc.. are uncountable? Please clarify.
yes.. you are correct ...