Consider f=0 if rational, =1 if irrational
我都係咁諗,不過搵唔到value in(0,1)咪做唔到個conclusion :^(
但係條theorem holds for constant function wo
constant function本身continuous架啦 :^(
I mean, 所以攞個value 係inclusive
即係 [f(a), f(b)] assuming f(a)<f(b)
:^(
sin(1/x)得唔得 :^(
:^(以為係複雜野 :^(
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