<< But we can't conclude "if not B then not A" until we know certainly that there are no other elements involved. Ric's instance proves that "if not be then not A" is false. >> It could be that the size of the pin is more important than how tightly seated it is. Resonant period and all that stuff. Ed Foote RPT http://www.uk-piano.org/edfoote/index.html www.uk-piano.org/edfoote/well_tempered_piano.html
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