or not. (c) Let f be a map from a space(X, ). into a space (Y,T) and t,T such that TSt and TS,, show that whether if f is T---t open map then fis t-? open map or not, and if f is t--- open map then f is t--- open map or not.

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A: 11) if Γ ={[0,1n) | n∈N}  then ∩Γ=[0,1)         Γ= {[0,1), [0,1/2), [0,1/3), [0,1/4), [0,1/5),…

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A: (a) For every m ∈ Z, 5 | (m2 −m2) = 0      Hence, m ~ m for all m ∈ Z      Hence, ~ is reflexive.

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A: Given below the detailed solution

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A: Since you have asked multiple question, we will solve the first question for you. If you want any…

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