13xx

• 1300: The notational conventions I adopted, and why
• 1301: The river, the isles and the bridges
• 1302: Once more bichrome triangles in complete graphs
• 1303: My recollections of operating system design
• 1304: The end of computing science?
• 1305: Answers to questions from students of Software Engineering
• 1306: The chessboard covered with dominoes
• 1306a: The chessboard covered with dominoes
• 1307: An unavoidable case analysis
• 1308: What led to “Notes on Structured Programming”
• 1309a: Zuckerman’s problem and the ETAC
• 1310: Three trip reports rolled into one: 2001.04.16 – 2001.07.06
• 1311: Another look at a problem from Hugo Steinhaus
• 1312: On disjoint binary numbers
• 1313: The GCD and the minimum
• 1315: Indirect equality enriched (and a proof by Netty)
• 1316: Philips and I: a few snapshots
• 1317: From van IJzeren’s correspondence to my aunt & uncle
• 1318: Coxeter’s rabbit