Update key to value map

main.ts

@@ -60,11 +60,8 @@ const DEFUALT_PREFS: MathTypePrefs = {
 		'minus plus': '\\mp',
 		'times': '\\times',
 		'div': '\\div',
-		'equals': '=',
 		'not equals': '\\neq',
 		'approximately': '\\approx',
-		'less than': '<',
-		'greater than': '>',
 		'less or equal': '\\leq',
 		'greater or equal': '\\geq',
 
@@ -82,7 +79,6 @@ const DEFUALT_PREFS: MathTypePrefs = {
 		'not element of': '\\notin',
 		'empty set': '\\emptyset',
 		'null set': '\\varnothing',
-		'complement': 'A^c',
 		'set minus': '\\setminus',
 		'power set': '\\mathcal{P}',
 		'natural numbers': '\\mathbb{N}',
@@ -135,9 +131,7 @@ const DEFUALT_PREFS: MathTypePrefs = {
 		'covariance': '\\text{Cov}(X,Y)',
 		'combination': '\\binom{n}{k}',
 		'permutation': 'P(n,k)',
-		'factorial': 'n!',
 		'sample space': '\\Omega',
-		'given that': '|',
 		'independence': '\\perp\\!\\!\\perp',
 		'proportional to': '\\propto',
 		'chi-squared': '\\chi^2',