Let T_us be the usual topology on R and TII be the lower limit topology generated by the unions of {]a,b]/ a,beR;asb}. Define f the mapping from (R, T_us) into (R, T_II) by f(x) = 2x and g the mapping from (R, T_I) into (R, T_us) by g(x) = 3x. Then * %3D f and g are both homeomorphisms O fis a homeomorphism but g is not

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2:47
A docs.google.com
None of the choices
If f is onto and (Y,T1) is a Hausdorff
space, then (X,T) is a Hausdorff space
Let T_us be the usual topology on R and
TII be the lower limit topology
generated by the unions of {]a,b]/
a,beR;asb}. Define f the mapping from
(R, T_us) into (R, T_II) by f(x) = 2x and g
the mapping from (R, T_II) into (R, T_us)
by g(x) = 3x. Then *
f and g are both homeomorphisms
f is a homeomorphism but g is not
None of the choices
O g is a homeomorphism but f is not
Let X = {a, b, c, d} and TX = {Ø, X, {b},
{b,c}, {a,b,d}} be a topology on X. Let Y
= {1, 2, 3, 4} and TY = {Ø, Y, {3}, {1,2,3}}
be a topology on Y. Let f be a mapping
from X into Y defined by f(a)=f(b) = 3,
f(c) = 2 and f(d) = 1. Let g be mapping
9 from X into Y defined by g(a) = 1,
a(b)-alc)-3 ancd ald) - 2 Then *
Transcribed Image Text:2:47 A docs.google.com None of the choices If f is onto and (Y,T1) is a Hausdorff space, then (X,T) is a Hausdorff space Let T_us be the usual topology on R and TII be the lower limit topology generated by the unions of {]a,b]/ a,beR;asb}. Define f the mapping from (R, T_us) into (R, T_II) by f(x) = 2x and g the mapping from (R, T_II) into (R, T_us) by g(x) = 3x. Then * f and g are both homeomorphisms f is a homeomorphism but g is not None of the choices O g is a homeomorphism but f is not Let X = {a, b, c, d} and TX = {Ø, X, {b}, {b,c}, {a,b,d}} be a topology on X. Let Y = {1, 2, 3, 4} and TY = {Ø, Y, {3}, {1,2,3}} be a topology on Y. Let f be a mapping from X into Y defined by f(a)=f(b) = 3, f(c) = 2 and f(d) = 1. Let g be mapping 9 from X into Y defined by g(a) = 1, a(b)-alc)-3 ancd ald) - 2 Then *
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