Description: Extend class notation to include the value of an operation F (such as + ) for two arguments A and B . Note that the syntax is simply three class symbols in a row surrounded by parentheses. Since operation values are the only possible class expressions consisting of three class expressions in a row surrounded by parentheses, the syntax is unambiguous. (For an example of how syntax could become ambiguous if we are not careful, see the comment in cneg .)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | co | class ( 𝐴 𝐹 𝐵 ) |