diff --git a/src/reports/common.rkt b/src/reports/common.rkt
index f738ddfcb..fbbd89d05 100644
--- a/src/reports/common.rkt
+++ b/src/reports/common.rkt
@@ -202,7 +202,7 @@
      (define fabs-impl (get-fpcore-impl 'fabs (repr->prop r) (list r)))
      (define e (list fabs-impl x))
      (define c (context (list x) r r))
-     (format "~a = ~a" x* (converter* e c))]
+     (list (format "~a = ~a" x* (converter* e c)))]
     [(list 'negabs x)
      ; TODO: why are x* and x-sign unused?
      (define x* (string->symbol (format "~a_m" x)))
@@ -220,7 +220,7 @@
      (define vs* (context-vars ctx*))
      ;; We added some sign-* variables to the front of the variable
      ;; list in `ctx*`, we only want the originals here
-     (format-sort-instruction (take-right vs* (length vs)) language)]))
+     (list (format-sort-instruction (take-right vs* (length vs)) language))]))
 
 (define (format-sort-instruction vs l)
   (match l
@@ -278,37 +278,31 @@
   (define out-prog* (fpcore-add-props out-prog (list ':precision output-prec)))
 
   (define versions
-    (reap
-     [sow]
-     (for ([(lang record) (in-dict languages)])
-       (match-define (list ext converter) record)
-       (when (and (fpcore? out-prog*) (or (equal? ext "fpcore") (supported-by-lang? out-prog* ext)))
-         (define name
-           (if identifier
-               (symbol->string identifier)
-               "code"))
-         (define out (converter out-prog* name))
-         (define prelude-lines
-           (string-join
-            (append-map (lambda (instruction)
-                          (let ([l (format-prelude-instruction instruction ctx ctx* lang converter)])
-                            (if (list? l)
-                                l
-                                (list l))))
-                        instructions)
-            (if (equal? lang "TeX") "\\\\\n" "\n")
-            #:after-last "\n"))
-         (sow (cons lang
-                    ((if (equal? lang "TeX")
-                         (curry format "\\begin{array}{l}\n~a\\\\\n~a\\end{array}\n")
-                         string-append)
-                     prelude-lines
-                     out)))))))
-
-  (define math-out
-    (if (dict-has-key? versions "TeX")
-        (let ([val (dict-ref versions "TeX")]) val)
-        ""))
+    (reap [sow]
+          (for ([(lang record) (in-dict languages)])
+            (match-define (list ext converter) record)
+            (when (and (fpcore? out-prog*)
+                       (or (equal? ext "fpcore") (supported-by-lang? out-prog* ext)))
+              (define name
+                (if identifier
+                    (symbol->string identifier)
+                    "code"))
+              (define out (converter out-prog* name))
+              (define prelude-lines
+                (string-join
+                 (append-map (lambda (instruction)
+                               (format-prelude-instruction instruction ctx ctx* lang converter))
+                             instructions)
+                 (if (equal? lang "TeX") "\\\\\n" "\n")
+                 #:after-last "\n"))
+              (sow (cons lang
+                         ((if (equal? lang "TeX")
+                              (curry format "\\begin{array}{l}\n~a\\\\\n~a\\end{array}\n")
+                              string-append)
+                          prelude-lines
+                          out)))))))
+
+  (define math-out (dict-ref versions "TeX" ""))
 
   (define dropdown
     `(select (option "Math")
diff --git a/src/reports/core2mathjs.rkt b/src/reports/core2mathjs.rkt
index 19e3158ff..09a617c10 100644
--- a/src/reports/core2mathjs.rkt
+++ b/src/reports/core2mathjs.rkt
@@ -134,8 +134,7 @@
                  [*gensym-collisions* 1]
                  [*gensym-fix-name* fix-name])
     ; make compiler context
-    (define ctx
-      (ctx-update-props (make-compiler-ctx) (append '(:precision binary64 :round nearestEven))))
+    (define ctx (ctx-update-props (make-compiler-ctx) '(:precision binary64 :round nearestEven)))
 
     ; translate
     (define p (open-output-string))
diff --git a/src/reports/plot.rkt b/src/reports/plot.rkt
index 26186b109..e3956bac4 100644
--- a/src/reports/plot.rkt
+++ b/src/reports/plot.rkt
@@ -133,7 +133,8 @@
   ;  (a) a power of 10 between n and (n + ε) divisions below max where ε is some tolerance, or
   ;  (b) a value, n divisions below max
   (define sub-range (round (/ (- max min) (add1 number))))
-  (define near (λ (x n) (and (<= x n) (<= (abs (/ (- x n) sub-range)) 0.2)))) ; <- tolerance
+  (define (near x n)
+    (and (<= x n) (<= (abs (/ (- x n) sub-range)) 0.2))) ; <- tolerance
   (for/list ([itr (in-range 1 (add1 number))])
     (define power10
       (first-power10 (ordinal->real (clamp (- max (* (add1 itr) sub-range)) min max) repr)