Full Idea
For intuitionists, proof is inherently informal.
Gist of Idea
For intuitionists, proof is inherently informal
Source
Stewart Shapiro (Philosophy of Mathematics [1997], 6.7)
Book Reference
Shapiro,Stewart: 'Philosophy of Mathematics:structure and ontology' [OUP 1997], p.205
A Reaction
This thought is quite appealing, so I may have to take intuitionism more seriously. It connects with my view of coherence, which I take to be a notion far too complex for precise definition. However, we don't want 'proof' to just mean 'persuasive'.