Slide 63
Slide 63 text
duplicate in nutshell (Ex: Infinite Stream)
let stream = [ 0, 1, 2, ... ] // Current infinite stream
// Stream of streams: Infinite stream having
// current & future states of infinite streams
duplicate(stream)
= [ [ 0, 1, 2, ... ], // Duplicates current `stream`
[ 1, 2, 3, ... ], // Duplicate + shift
[ 2, 3, 4, ... ], // Duplicate + shift 2 times
[ 3, 4, 5, ... ], // Duplicate + shift 3 times
... ] // ...and infinitely many more