Columbia subject headings:
Harvard subject headings:
Artificial intelligence.
Bach, Johann Sebastian, 1685-1750
Escher, M. C. (Maurits Cornelis), 1898-1972.
Gödel, Kurt.
Metamathematics.
Symmetry.
Princeton subject headings:
Artificial intelligence.
Bach, Johann Sebastian, 1685-1750.
Escher, M. C. (Maurits Cornelis), 1898-1972.
Gödel, Kurt.
Metamathematics.
Symmetry.