∗ I 2 1 2 2 2 3 3 4 5 5 7 6 8 II 11 1 11 2 12 3 13 4 14 5 15 6 — 16 ∗ 2002 8 5 8 2006 5 2007 8 Soto-Andrade Varela 1984 1 Part I 1 Russell, B.A.W., 1872-1970 ( ) X ∈ X X M 1 M M M ∈ M M M M M ∈ M M 2 Cantor, G., 1845-1918 1 X 2X X u t X m : 2X → X X R R = {m(A) | A ⊆ X, m(A) 6∈ A} m(R) R m(R) ∈ R R m(A) 6∈ A A ⊆ X m(R) = m(A) m R = A m(R) 6∈ R m(R) 6∈ R R m(R) ∈ R 1 M 2 1 1 ( ) 3 1 2 X X X XX X u