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How does JY run the contrapositive on chains so quickly/accurately in his head? what is the best way to get good at it?
I keep need to telling myself Necessary Failed so rule triggers and so on... any advice would be great. Thanks
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It just comes with time and practice, it seems super daunting at first but after a while it becomes more natural.
A good way to practice is with fool proofing in/out games and drills with MBT/MBF questions.