{1,2,3, 4}, T = {», X, {4}, {1,2}, {1,2, 4}} Q. Let X and Y = {r, s, p, q}, F = {ø,Y, {p}, {r, s}, {r, s, p}} Given the mapping f: (X,T) /(1) = r, f(2) = s, f(3) = q, f(4) = p.Then a. f is a...

topology

Extracted text: {1,2,3, 4}, T = {», X, {4}, {1,2}, {1,2, 4}} Q. Let X and Y = {r, s, p, q}, F = {ø,Y, {p}, {r, s}, {r, s, p}} Given the mapping f: (X,T) /(1) = r, f(2) = s, f(3) = q, f(4) = p.Then a. f is a continuous but not open mapping. b. f is an open but not continuous mapping. c. f is a continuous and open mapping. d. f is neither continuous nor open mapping.. = (Y, F) by - |3D a O b C O d