Logic and sets · Propositional logic · Logical consequence · Tautology
Problem 2, 2012
← Prev · 1 / 19 · Next →Tomorrow's weather forecast consists of the following three claims:
- it will be cloudy, or it will snow, or the wind will blow;
- if it is cloudy and snowing, then the wind will blow;
- if the wind does not blow, then it will be cloudy and it will not snow.
Can one conclude from this that the wind will blow if it snows?
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Serbian Municipal Competition 2012, high school grade I, category A, problem 2. Organized by the Mathematical Society of Serbia (DMS). Source