F.9.1:5.4 - Partial analogy without substitution

Two schools use different senses that share one explanatory pattern. For example, a TAE felt-sense phrase and a later formal term may share one stated explanatory feature while differing elsewhere. Their F.9 Bridge obtains, and an affirmative bounded-use claim says that the Bridge is suitable for one teaching comparison while rejecting method transfer. A partialAnalogy stance helps the reader notice the shared pattern. It neither makes the methods equivalent nor authorizes or proves a teaching act.