> 卜゙卜゙卜゙卜゙卜゙卜゙卜゙卜゙ > ┝━┓ > │ ┃∫[X]j(x)m(dx)=Σ[i=1;n]αim(Ai) > │ ┃f-(x)=Max(-f(x),0) > │ ┃f-1 (A∩B) =f-1 (A) ∩f-1 > │ ┃df/dx=lim[⊿x→0]{f(x+⊿)-f(x)}/ > │ ┃lim[x→0](1-cos(x))/x=0 > │ ┃K={(x,y)}|0≦x≦1,0≦y≦x}