can a collection of ideas be called a set?
answer must be of 1 paragrah(8 lines)

Yes, a collection of ideas can be be Set.

Set can be defined as the collection of any kind of objects, things which constitute some real space in the world. It is a collection of different/ distinct objects or things within it. If there are no elements in the set then the set is called as Empty Set (∅).

An Empty Set has no values within it.

So,

As Idea is the collection of thoughts which can be of any kind or relating to anything. Therefore, the Ideas' collection can be put into the category of set.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)