Critical Skills Training. Postdoctoral trainees are typically well trained in the technical aspects of their discipline but few receive formal training in leadership. This course will equip you with the critical leadership skills you need to succeed in a wide range of scientific career paths. Interactive Format.
Horseshoe (â, \supset in TeX) is a symbol used to represent: 1  Material conditional in propositional logic. 2  Superset in set theory.
Celtic Trinity Symbol and Triquetra Meaning. The Celtic symbol for trinity has a myriad of symbolic meaning. We see the trinity motif in Celtic knots, as well as in symbol-form like the triquetra and triskelion (a.ka. triskele or fylfot).To the ancient Celtic mind, it may also signify the lunar or solar phases.This conclusion is made as we see the trinity/triquetra motif alongside other solar and lunar symbols in ancient remants and archeological digs.o the ancient Celtic mind, it may also signify the lunar or solar phases. This conclusion is made as we see the trinity/triquetra motif alongside other solar and lunar symbols in ancient remants and archeological digs.