Deduction involves listing the alternative explanations and eliminating all but one This principle is so basic that I have repeated it, with minor variations, in a number of cases: It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth [BERY]. Eliminate all other factors, and the one which remains must be the truth [SIGN]. --- when you have eliminated, the impossible, whatever remains, however improbable, must be the truth [SIGN]. --- when you have eliminated all which is impossible, whatever remains, however improbable, must be the truth [BLAN]. I now proceeded, using my familiar method of logical analysis, to narrow down the possible solutions [BLAN]. It is impossible as I state it, and therefore I must in some respect have stated it wrong [PRIO]. One should always look for a possible alternative and provide against it [BLAC]. How did you know it was there?
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