Le 25/09/2012 09:11, Jacob Carlborg a écrit : > On 2012-09-25 00:28, bearophile wrote: > >> (||) >> (|1|) >> (|1, 2|) >> (|1, 2, 3|) > > What about: > > || > |1| > |1, 2| > Yeah and why not þ1, 2þ or ŀ1, 2ŀ ? maybe ↓1, 2↓ is better ? or « 1, 2 » (this one at least is readable).