Umm... new problem. I first installed both postgresql95-libs-9.5.0-1PGDG.rhel6.x86_64.rpm and the libs-2PGDG rpm. I then tried installing postgresql-9.5.0-1PGDG.rhel.x86_64.rpm, but yum complains that libs-1PGDG is not installed. I ran "yum list postgresql95-libs" and, sure enough, it is reporting that only libs-2PGDG.rhel is installed for the postgresql95-libs.x86_64 package. I've tried getting around the problem by --skip-broken, but that didn't work either, nor did the other yum suggestion to use -Va --nofiles --nodigest. I also tried to reinstall libs-1PGDG, but that fails as well.
Any suggestions as to how to get everything installed?