mathematics questions

SELF-REFLECTION 2

1. {\displaystyle C\to C}Suppose that f: X→ Y that A⊂ X and that B⊂ Y is a customary reuse the letter f for the pushforward set map f(PX) → (PY) and use f for the pull backward set map f (PY) P(X)

(a) replace the suit symbol in A f-1 with c can you say more if f is injective superlative

(b) Replace the suit symbol in B f (f-1 (B)) with ⊂ or ͻ can you say more if f is superlative or injective?