New answers tagged logic
2
votes
Let P be a polygon
Further to what has been said:
These sentences in a proof are equivalent:
Let $P_n$ be a polygon of $n$ vertices; then $\psi(P_n).$
Let $P_n$ be an arbitrary polygon of $n$ vertices; then $\psi(P_n)...
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0
votes
Teaching "if...then" and "the following are equivalent"
What do you say to the following way of teaching "if...then"?
An implication $(A {\implies} B)$ can be viewed as asserting that $B$ is at least as true as $A.$
This alludes to the meaning ...
- 1,301
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