fix some quotes

1 files changed, 4 insertions, 4 deletions

diff --git a/essays/concept_art.tex b/essays/concept_art.tex
index bfe4c79..79247a6 100644
--- a/essays/concept_art.tex
+++ b/essays/concept_art.tex
@@ -28,7 +28,7 @@ Now what is artistic, aesthetic, about a work which is a body of
 concepts? This question can best be answered by telling where concept art 
 came from; I developed it in an attempt to straighten out certain traditional 
 activities generally regarded as aesthetic. The first of these is structure art, 
-music, visual art, etc., in which the important thing is "structure." My 
+music, visual art, etc., in which the important thing is \enquote{structure.} My 
 definitive discussion of structure art is in my unpublished essay \essaytitle{Structure 
 Art and Pure Mathematics}; here I will just summarize that discussion. Much 
 structure art is a vestige of the time when \eg music was believed to be 
@@ -169,15 +169,15 @@ reduction together constitute the theorem.
 \section*{Concept Art: Innpersegs (May--July 1961)}
 
 \begin{sysrules}
-A "halpoint" iff whatever is at any point in space, in the fading rainbow halo 
+A \enquote{halpoint} iff whatever is at any point in space, in the fading rainbow halo 
 which appears to surround a small bright light when one looks at it through 
 glasses fogged by having been breathed on, for as long as the point is in the 
 halo. 
 
-An "init`point" iff a halpoint in the initial vague outer ring of its halo. 
+An \enquote{init`point} iff a halpoint in the initial vague outer ring of its halo. 
 
 
-An "inn`perseq" iff a sequence of sequences of halpoints such that all the 
+An \enquote{inn`perseq} iff a sequence of sequences of halpoints such that all the 
 halpoints are on one (initial) radius of a halo; the members of the first 
 sequence are initpoints; for each of the other sequences, the first member (a 
 consequent) is got from the non-first members of the preceding sequence