If explanation is indeedtiedclosely to unification then it is not hard to see how the disjunctiveness characteristic of computerprooftends to yieldproofs that are also consideredrelatively unexplanatory by mathematicians.
3 was that computerproofsmaytend to be lessexplanatory than traditionalproofs because they are moredisjunctive, and disjunctiveness reduces explanatoriness.
The mindsometimesexercises this judgmentout ofnecessity, where demonstrativeproofs and certainknowledge are not to be had; and sometimesout oflaziness, unskilfulness, or haste, even where demonstrative and certainproofs are to be had.
This note is an exposition of differentproofs of cocompactness for Sobolev-typeembeddings, which employmethods of classical PDE, potentialtheory, and harmonic analysis.
In thatperiod the Crommelyncks producedmore than 700 gravures for Picasso, oftenworking through the night and proofingsuccessivestages of eachprintso thatPicasso could carry it further the followingmorning.