let S be non empty compact TopSpace; for T being NormedLinearTopSpace st T is complete holds
for H being non empty Subset of (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) holds
( Cl H is sequentially_compact iff (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H is totally_bounded )
let T be NormedLinearTopSpace; ( T is complete implies for H being non empty Subset of (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) holds
( Cl H is sequentially_compact iff (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H is totally_bounded ) )
assume A1:
T is complete
; for H being non empty Subset of (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) holds
( Cl H is sequentially_compact iff (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H is totally_bounded )
set Z = R_NormSpace_of_ContinuousFunctions (S,T);
let H be non empty Subset of (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))); ( Cl H is sequentially_compact iff (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H is totally_bounded )
reconsider F = H as non empty Subset of (R_NormSpace_of_ContinuousFunctions (S,T)) ;
set N = (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H;
R_NormSpace_of_ContinuousFunctions (S,T) is complete
by A1, C0SP3:52;
then
( (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | (Cl H) is totally_bounded iff Cl H is sequentially_compact )
by TOPMETR4:17, Th7;
hence
( Cl H is sequentially_compact iff (MetricSpaceNorm (R_NormSpace_of_ContinuousFunctions (S,T))) | H is totally_bounded )
by Th8; verum