Maths, Mathematics, Discrete Mathematics, Discrete Maths, Sets.
A". To do that, we need to introduce the notation belongs ∈ and every ∀: B = {∀x ∈ A} Step 3: "Such that". In the sets theory, the "such that" phrase is converted into the symbol |. Therefore: B = {∀x ∈ A| } Step 3: "are greater than 1". This means that after the "such that" phrase, we need to put