A1.2 — Examples and logical conclusions
8684
Years 5-7 · Lesson 1: Examples and logical conclusions
Kolya’s mother says, “Every champion does well at school.” Kolya replies, “I do well at school, so I am a champion.” Does his conclusion follow? Explain.
Source: Logic: the language of mathematics — Khamovniki, Russian Grades 5-7, Series 5, 18 October 2014. K2, Problem 1. Preparation-circle worksheet.
