Introduction to logic and sets /
Christian, Robert R.
Introduction to logic and sets / by Robert R. Christian. - 2d ed. - Waltham, Mass. : Blaisdell Pub., 1965. - xii, 116 p. : ill., ; 21 cm.
Set theory.
Logic, Symbolic and mathematical.
Introduction to logic and sets / by Robert R. Christian. - 2d ed. - Waltham, Mass. : Blaisdell Pub., 1965. - xii, 116 p. : ill., ; 21 cm.
Set theory.
Logic, Symbolic and mathematical.
