NASA's Pioneer 8 was launched to heliocentric orbit to study interplanetary space. It sent back data for nearly 30 years. NASA's Pioneer 8 was launched to heliocentric orbit to study interplanetary ...

Nov 22, 2024 The final chapter of this course on secretly-categorical set theory. Axiomatic Set Theory 9: The Axiom of Choice Nov 15, 2024 The penultimate week of this axiomatic set theory course, ...