Problem Solving - Proof and Writing Maths Flashcards
How many stages are there in the problem solving cycle>
4
What is stage 1 of the PSC?
Specification and analysis
What is stage to in the PSC?
Information collection
What is stage 3 in the PSC?
Processing and representation
What is stage 4 in the PSC?
Interpretation
What does => mean
It means the first statement implies the second
What does <= mean
It means that the first statement is implied by the second
What does <=> mean
That the first statement implies and is implied by the second
What is the converse
The oppositie - changing of ‘arrows’
Is the converse always true
No
What is meant by a sufficient condition
A condition that will produce an event
What is meant by a neccessary condition
A condition that must be present for an event to occur
What type of condition is this ‘P => Q’
P is a sufficient condition for Q
What type of statement is this ‘P <= Q’
P is a neccesary condition for Q
What is proof by deduction
Using logic and facrs to prove a statement is true
