Please note: When the light turns green, the sixth batch of test propositions will appear. If the proposition is true, press the right-hand button. If the proposition is false, press the left-hand button. Proposition 1: Coal is black. Proposition 2: 1 + 1 = 2. Proposition 3: The temperature in winter is lower than in summer. Proposition 4: Men are generally shorter than women. Proposition 5: A straight line is the shortest distance between two points. Proposition 6: The moon is brighter than the sun.
