Full Idea
Frege thinks there is a single right deductive order of the truths. This is not an epistemic order, but a logical order, and it is our job to arrange our beliefs in this order if we can make it out.
Gist of Idea
Frege thinks there is an independent logical order of the truths, which we must try to discover
Source
report of Gottlob Frege (works [1890]) by William D. Hart - The Evolution of Logic 2
Book Reference
Hart,W.D.: 'The Evolution of Logic' [CUP 2010], p.44
A Reaction
Frege's dream rests on the belief that there exists a huge set of logical truths. Pluralism, conventionalism, constructivism etc. about logic would challenge this dream. I think the defence of Frege must rest on Russellian rooting of logic in nature.