argumentum ex silentio and argumentum ad ignorantiamare generally considered at least weak, in the former case, and fallacious in the later, sometimes in both.
37 posted on 06/11/2014 10:07:34 AM PDT by chesley
Just pointing out the possibilities in the opposite direction.
43 posted on 06/11/2014 10:18:22 AM PDT by AnAmericanMother
(Ecce Crucem Domini, fugite partes adversae. Vicit Leo de Tribu Iuda, Radix David, Alleluia!)