# Self Doubt

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formulas represent the sentence, 'He will come on the 8:15 or the 9:15 train; if the former, he will have time to visit us', where

p means 'He will come on the 8:15'
q means 'He will come on the 9:15'
r means 'He will have time to visit us'

(pVq) (p r)

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