39, 42 asynchronous logic 22 Atkins v Virginia 28 ATM 233 ATP 98 audio field 291 audio processing system 114 auditory cortex 31 Australian English 86 Australian Outback 28 avatar xii axiom 198 Peano axioms 199, 205 B Babbage, Charles 16, 223 Bach, JS 7, 259 background context 86 Bader, Douglas ix bandwidth 288, 29