Sophie Germain (1776-1831). French mathematician who taught herself number theory by reading her father's library by candlelight at thirteen, communicated with Lagrange and Gauss under the male pseudonym Monsieur LeBlanc because the Académie did not admit women, and produced original work on Fermat's Last Theorem and the mathematical theory of elastic vibrations. Her cognitive signature is the discovery specialty operating under the constraint of credentialing exclusion: monotropic obsession with a domain (number theory) sustained against active social opposition, pattern-extraction as the only available mode because no formal education was accessible, and a willingness to do years of mathematical labor without prospect of recognition. Gauss eventually learned her real identity and wrote that she had "the noblest courage, quite extraordinary talents and superior genius." The integration partner, in her case, was Gauss himself — but only after she had done years of unsupported work that almost no one in her century would have sustained. The pattern: discovery happens regardless of whether the credentialing apparatus permits it; the integration layer arrives late or not at all.