Je was op zoek naar: existential (Grieks - Engels)

in parallel with his journalistic activities, he was close to sartre and adopted an existentialist posture towards marxism, leading him to emphasize the questions of alienation and of liberation, in the frame of a reflection on existential experience and the analysis of social systems from the individual experience viewpoint.
alongside his journalistic activities, he worked closely with sartre and adopted an existentialist approach to marxism, leading him to emphasize the questions of alienation and of liberation in the framework of existential experience and an analysis of social systems from the viewpoint of individual experience.

the fragment της δεύτερης λογικής τάξης που αποτελείται μόνο από υπαρξιακή τύπων δεύτερης τάξης ονομάζεται existential second-order logic και με τη συντομογραφία eso, ως formula_4, ή ακόμη και ως ∃so.
the fragment of second order logic consisting only of existential second-order formulas is called existential second-order logic and abbreviated as eso, as formula_4, or even as ∃so.