00829nam a2200253Ia 4500 112730 BIBL 20160527183432.0 930331s1973 mx a 00000 spa bvc00001827 /L/r84 spaeng EVLG QA459 .D813 513.9 516.0076 D814m E Dubnov, Ya. S. (I︠A︡kov Semenovich) 218628 Local Errores de las demostraciones geométricas Ya S. Dubnov; versión española: José Hernán Pérez Castellanos. México Limusa 1973. 73 p. illus. Temas matemáticos Translation of: Mistakes in geometric proofs. Geometry Problems, exercises, etc. 101978 Local Fallacies Logic 94520 Local 94159 94159 0 0 0 516_007600000000000_D814M_E 0 evl 25851 10 10 1 2016-05-27 172430 0 516.0076 D814m E 80000001206195 2016-05-27 00:00:00 r:112730 z:NCC:D 6