![](/static/img/new_flags/v2/en.png)
![](/static/img/new_flags/v2/en.png)
Hur används ordet noninterchangeable
- "the arguments of the symmetric relation, `is the father of', are noninterchangeable"
Vad betyder noninterchangeable inom generell ?
(mathematics or logic) such that the terms of an expression cannot be interchanged without changing the meaning