3.1 A brief history of western E.P. The foundation of E.P.: before 1920s Wundt,1879: methodology James, “Talks to the teachers” 1899; “The principles of psychology”1890; Dewey: apply psychology to education
Theory of Equivalence Relations (A, R) (E1) For all x : xRx. (E2) For all x, y : If xRy then yRx. (E3) For all x, y, z : If xRy and yRz then xRz. Logic in Computer Science – p.2/16
I．Choose the Correct Answer 1. A disturbance can be written x b xt b t a y(x,t) (e e e ) 2 2 −( / ) 2 / − = . This disturbance is （ D ） (A) Not a traveling wave. (B) A traveling wave with speed v = a. (C) A traveling wave with speed v = a/b. (D) A traveling wave with speed v = b
Library of Congress Cataloging-in-Publication Data Manahan, Stanley E Environmental chemistry Stanley E. Manahan.-7th ed p. cm. Includes bibliographical references and index
