(12–13) : Some rectangles are cones. All cones are squares. I + A ⇒ I - type of Conclusion. “Some rectangles are squares.” (P) Venn diagrams of “All triangles are rectangles”
After combining venn diagrams II and V, we get
After combining venn diagrams II and IV, we get :
12.(3) Conclusion I is the Converse of Conclusion (P). Venn diagram VI supports Conclusion II.