Úloha ID 1565 - 
Jsou dána následující tvrzení:
A: Některá vozidla znečišťují životní prostředí.
B: Žádné kolo není vozidlo.
Vyberte tvrzení, které vyplývá z nepravdivosti těchto dvou tvrzení.
Správná odpověď je: C
Negace tvrzení A: Všechna vozidla neznečišťují životní prostředí. Negace tvrzení B: Alespoň jedno kolo je vozidlo. Musí tedy existovat alespoň jedno kolo, které neznečišťuje životní prostřední.
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| _cfuvid | session | Description is currently not available. |
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| uloha_switch | 1 day | Description is currently not available. |
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