pp1p16c1 (causa) efficiens

Meaning | Unclear. {2d05 duratio} explanation: "[a cause] which necessarily gives the existence of the thing, but does not take it away."
Related concepts | {3d01 causa adaequata^inadaequata, partiale} , {4d03 contingens^necessarius}, pp1a03 causa effectus, pp1p16c2 per accidens
Occurrence | [geomap]

1p33s1 contingentes ...causa efficiens connected to {4d03 contingens^necessarius}
...A thing is called necessary either in respect to its essence or in respect to its cause; for the existence of a thing necessarily follows, either from its essence and definition, or from a given efficient cause. ... | ...Res aliqua necessaria dicitur vel ratione suae essentiae vel[excl-non exh] ratione causae. Rei enim alicujus existentia vel[excl-non exh] ex ipsius essentia et definitione vel ex data causa efficiente necessario sequitur...

{2d05 duratio} | 2d05 duratio [notes]
Explanation ... [a thing's] efficient cause, which necessarily gives the existence of the thing, but does not take it away. | EXPLICATIO ... [rei] causa efficiente quae scilicet rei existentiam necessario ponit, non autem tollit.

{3p16 imaginamur simile} ...causa per accidens as opposed to causa efficiens...
...the thing...will be accidentally...a cause of pleasure or pain. ...not the efficient cause... | res ....erit ...per accidens ... causa ...non sit horum affectuum causa efficiens....