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How to determine the diameter of a graph?
So the diameter of a graph is defined as the number of edges of the shortest path between the furthest nodes. Could one simply use breadth-first search to determine the spanning tree and then take the length of the longest path? That would then be the shortest possible distance between the two farthest nodes, right?…
When is something scientifically proven?
I studied mathematics until I completed my undergraduate degree. Our rector was also a professor of mathematics and liked to tell an anecdote during my first semester. Apparently, at his university, which wasn't particularly well-known internationally, there was once a mathematics student who caused an international sensation with his diploma thesis, a topic that even…
Help with propositional logic?
ByAwhpmg
(X∨Y) <=> (X↑X)↑(Y↑Y) The task is to prove the equivalence, but I am of the opinion that the statements are not equivalent at all? (X↑X)↑(Y↑Y) would be equivalent to (X∧Y) I've also asked ChatGPT, but it didn't find any equivalence in truth tables and now I'm at a loss.
Find the derivative?
What is the derivative of -3^x I have ln(3)*(-3^x)
How do you determine the switching point of the drawn parabolas when the normal parabolas are shifted?
How do you determine the switching point of the drawn parabolas when the normal parabolas are shifted?
How do you determine the electron configuration of magnesium?
I'm not entirely sure why the correct E configuration is 3s^2 and not 1s^2 2s^2 2p^6 3s^2 3p^2? What is the reason for this reduction, or how can it be mathematically justified? (see image) Since I'm not an expert on this topic, a detailed answer would be very appropriate!
I can’t see everything in this mess,
but (1st step) 5 – (-1.5) is not 7.5 and -193 – (-2) is also
not 86 or whatever that means. Furthermore, the top is made of
7.5 suddenly became 5.