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A sentence that is either true or false is a [ ].
A
a+b=ab=4a+b=ab=4a+b=ab=4, so 4>44>44>4 is false.
B
All, every, for any or for each.
C
Show that no permitted value satisfies it.
D
A sentence that is either true or false is a mathematical statement.
Card 1 of 20
1.1.3 Proof Flashcards
20 flashcards on WJEC A Level Maths 1.1.3 Proof: the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.