China tariffs have only been slashed temporarily, for now and many other countries are still awaiting negotiations on where their tariff levels will end up, after that other 90-day pause, on Trump’s “reciprocal” levies, due to end in July.
Commas how, do they work?
Well, Con(PA) is a “natural” statement I’d say, and ZFC proves Con(PA).
All the successful theories were developed from experimental results
The more I think about this, the more I’m not sure I 100% agree… For example, special relativity essentially came from the observation that Maxwell’s equations were not Galilean invariant, and instead invariant under this weird other group (what we now call the Lorentz group); and QED essentially came from Dirac wanting to take a “square root” of the Klein-Gordan equation.
(Of course, real history is more intricate than this.)
This is not about the same article nor the same authors.
You made me realize this is actually pretty common in math, e.g. “Let x, y be real numbers” instead of “Let x and y be real numbers”. I imagine this comes from the infuence of notation like “Let x, y ∈ ℝ”.