1. What are the contributions mentioned in the paper "Concept image and concept definition in mathematics with particular reference to limits and continuity" ?
In this paper the authors formulate a number of general ideas intended to be helpful in analysing these phenomena and apply them to the specific concepts of continuity and limits.
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2. What is the central topic in the English sixth form?
The more central topic is differentiation and, since a differentiable function is necessarily continuous, the latter topic is relegated to the background (although it is essential in certain proofs).
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3. What is the net effect on the concept image?
The net effect on the concept image, however, is, almost certainly, a reinforcement of the intuitive idea that the graph has “no gaps” and may be drawn freely without lifting the pencil from the paper.
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4. What is the definition of the function concept?
Apart from giving arithmetic and geometric progressions (n→a+bn , n→arn respectively) as examples of sequences, the text then returns to further discussion of the function concept.
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