Full Idea
Nowadays we think of the consequence relation itself as the primary subject of logic, and view logical truths as degenerate instances of this relation. Logical truths follow from any set of assumptions, or from no assumptions at all.
Gist of Idea
Logic studies consequence; logical truths are consequences of everything, or nothing
Source
JC Beall / G Restall (Logical Pluralism [2006], 2.2)
Book Reference
Beall,J/Restall,G: 'Logical Pluralism' [OUP 2006], p.13
A Reaction
This seems exactly right; the alternative is the study of necessities, but that may not involve logic.