Symbolic logic:
Fitch, Frederic Brenton
Symbolic logic: An introduction / by Frederic Brenton Fitch. - New York: Ronald, 1952. - 238p.
Symbolic logic
511.3 / BRE
Symbolic logic: An introduction / by Frederic Brenton Fitch. - New York: Ronald, 1952. - 238p.
Symbolic logic
511.3 / BRE