Beyond that, there are problems with statements that are apparently analytic. Every black dog is a dog but is every iron horse a horse? Even "black dog" may mean something other than a dog in some context. Human language is very ambiguous. That's why mathematicians use formal logic, sometimes. In one of his books, John Baez says a 1x1 matrix is a number I pointed out that it wasn't and he said that all mathematicians would say it is except logicians. He said he would lash himself with a wet noodle.
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