fix missing math end

notes/paper-notes/q4-Orientiation-Equivalence.md

@@ -168,7 +168,7 @@ From boundedness we get a weakly convergent subsequence $`n^{(k_l)} ⇀ n`$, whi
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 *Lemma 2*: non-orientability is a stable property with respect to the $`W^{1,p}(Ω, ℝ^9)`$ norm:
-Let $`Q ∈ W^{1,p}(Ω, 𝒬), 1 ≤ p ≤ ∞`$ be non-orientable. Then there exists $`ε > 0`$, depending on $`Q`$, so that for all $`Q̃ ∈ W^{1,p}(Ω, 𝒬) with `$\lVert Q̃−Q \rVert_{W^{1,p}(M,ℝ^9)} < ε$ the line field Q̃ is also non-orientable.
+Let $`Q ∈ W^{1,p}(Ω, 𝒬), 1 ≤ p ≤ ∞`$ be non-orientable. Then there exists $`ε > 0`$, depending on $`Q`$, so that for all $`Q̃ ∈ W^{1,p}(Ω, 𝒬)`$ with $`\lVert Q̃ − Q \rVert_{W^{1,p}(M,ℝ^9)} < ε`$ the line field Q̃ is also non-orientable.
 
 *Proof of Lemma 2*: obvious, given Proposition 4