On Tuesday, 10 September 2024 at 04:06:16 UTC, Walter Bright wrote: > https://github.com/WalterBright/documents/blob/96bca2f9f3520cf53ed5c4dec8e5e2d855e64e66/sumtype.md Thanks! You should standardize on using either of "sumtypes" or "sum type" but not both. According to https://en.wikipedia.org/wiki/Algebraic_data_type the latter seems preferable.