Leli Forte
Joined 1 Lulju 2007
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Linja 439:
u allura
<center> <math> S(|f|,P)-s(|f|,P)\leq S(f,P)-s(f,P).</math></center>
Mela la <math>\displaystyle{f}</math> hi integrabbli, <math>\displaystyle{|f|}</math> hi
Id-diżugwaljanza bejn l-integrali, niksbuha mir-relazzjoni
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