# Prove Unique Solution

Supposse that $$y \in{R(T)}$$, $$T\in{L(V,W)}$$ the equation $$Tx=y$$, have unique solution if only and if T is injectiva

Mark44
Mentor
What have you tried? Do you know how to prove if and only if statements?

yes, first left after right, i want only idea,

HallsofIvy