Valid Quiz 2

P1 If today is Monday, tomorrow is Friday

P2 Today is Monday

C Tomorrow is Friday

• Valid

• Invalid

P1 If Henry misses his bus, he will be late for work

P2 Henry is late for work

C Henry missed his bus

• Valid

• Invalid

P1 If boggles wobble, Jim is a boggle

P2 Jim is not a boggle

C Boggles do not wobble

• Valid

• Invalid

P1 All dogs are cats

P2 Fido is a dog

C Fido is a cat

• Valid

• Invalid

P1 All dogs are cats

P2 Fido is a cat

C Fido is a dog

• Valid

• Invalid

P1 All pupils at George Watson's College wear school uniform

P2 Susan does not go to George Watson's College

C Susan does not wear a school uniform

• Valid

• Invalid

P1 Some monkeys are heavy

P2 All heavy things are green

C Some monkeys are green

• Valid

• Invalid

P1 If Henry misses his bus, he will be late for work

P2 Henry did not miss his bus

C Henry will not be late for work

• Valid

• Invalid

P1 If Mr Boyd is a bird, monkeys are heavy

P2 Monkeys are heavy

C Mr Boyd is a bird

• Valid

• Invalid

P1 All and only monkeys are heavy

P2 Fido is not monkey

C Fido is not heavy

• Valid

• Invalid