There is a set of operations which contains all the outside operations.

For this I include

1. the other's thoughts
2. the other's actions
3. the other's decisions
4. an outside event

etc.

Being a disctinct class of operations, it has been excluded from being in the content of my former diary which I will call an inner diary.

Being a fundamental class of operations, it deserves to form another diary of itself which I will call an outer diary.