|=. wing hoon hoon||Change the value of a leg of the subject|
=. changes the value of one leg of the subject. Technically =. creates a new subject, identical to the old subject except with the specified change.
Tisdot takes 3 children:
- the face from the subject you intend to modify,
- the new value for that face
- the following hoon which can use the face’s new value in evaluation, until that evaluation is complete