,---------------. | Contributions | `---------------ยด ,------------------------------------------ | 2024-06-01 15:39:34 ruv wrote: | requestClarification - Usage of the `n|u` data type | see: https://forth-standard.org/standard/core/Plus#contribution-341 `------------------------------------------ For the word `+` the standard specifies the stack diagram `( n1|u1 n2|u2 -- n3|u3 )`. Is this diagram __equivalent__ to `( n1 n2 -- n3 | u1 u2 -- u3 )`? In other words, is `+` formally defined for the input types `( n1 u1 )` and `( u1 n1 )`, or not?