S2 L1 Validity

All Watson's pupils are tall

Jenny is tall

Jenny is a Watson's pupil

• Valid

• Invalid

All fish have scales

Pianos have scales

Pianos are fish

• Valid

• Invalid

All monsters are scary

Vampires are monsters

Vampires are scary

• Valid

• Invalid

All planets are made of cheese

The moon is a planet

The moon is made of cheese

• Valid

• Invalid

All planets are made of cheese

The moon is made of cheese

The moon is a planet

• Valid

• Invalid

All pens are writing tools

A biro is a writing tool

So a biro is a pen

• Valid

• Invalid

All superheros have hair

Superman has hair

Superman is a superhero

• Valid

• Invalid

All giraffes are yellow and brown

Tim is a giraffe

Tim is yellow and brown

• Valid

• Invalid

All people are monkeys

apes are people

so apes are monkeys

• Valid

• Invalid

All diners are savory

My meal was savory

So my meal was a diner

• valid

• invalid