4 ms·

isn't bottom part of any data type, including a?

• jrockway 10y ago
  It is, yes, but people often proclaim "haskell has solved the 'null' problem", and it hasn't because bottom is the exact same thing as null.
  • tome 10y ago
    > bottom is the exact same thing as null No it's not because you can't check for bottom (purely) and thus you can't use it as a flag or sentinel value.