-14 karma · joined July 15, 2023
Meanwhile, the Arabs in the West Bank and Gaza have chosen people to govern them whose only goal is to destroy Israel and murder all Jews there. These people are possessed by an extreme Islamist ideology which has driven them insane.
The Arabs and Jews of Palestine were in essentially the same position in 1947. Look at them now. The Jews have built a successful modern state, while the Arabs are using all their resources to build tunnels to try to get in to Israel and murder Jews randomly. Clearly, the Arabs of Palestine have made stupid mistakes and should have just accepted the state in 1947.
The current war was started by Hamas and they knew exactly what the outcome would be - thousands of deaths of their own people. They sacrificed their own people to use it as a political tool by which they aim to get the political support of useful idiots like you against Israel. It is a sick policy carried out by sick people. This is not genocide; it is a war, started by Hamas who wanted the results we see.
Israel is responding to an attack on its people according to, above the standards of even, international law. I don’t see you calling the Ukrainians bad for fighting back against Russia. This stance is pure anti-semitism, though you may not realize or intend it.
Just represent vectors as column vectors from the start, define R^n as R^n,1 (in the notation of the book) and then there's no confusion and you get matrix multiplication of column vectors as students learned in high school: M.x where M is an m x n matrix and x is an n x 1 column vector, with product an m x 1 column vector. Stick to this all the way through a first linear algebra textbook and undergrad tears can be avoided. e.g. example 3.32 in the text: T(1,0) = (1,2,7). Just write these as column vectors and the matrix multiplication is easier to visualize. (Also, T acting on a real number was written T(x) with brackets so T acting on a vector should really be written T((1,0)). Inconsistencies in notation like this lead to pain.)
Then, for example, when you want to show that the rows of a matrix are independent, you can use a row vector to write succinctly x.M = 0 => x = 0 where x is now a row vector. And it's clear we're doing something other than transforming space vectors here as we've used column vectors for vectors representing points in space.
For undergrad textbooks you want to decide on a convention, one that matches what was done in high school preferably, and stick to it.