diff --git a/module/helpers/index.mjs b/module/helpers/index.mjs
index a0e362b..0279f6f 100644
--- a/module/helpers/index.mjs
+++ b/module/helpers/index.mjs
@@ -5,11 +5,25 @@ import { objectValue } from "./objectValue.mjs";
 import { toFriendlyDuration } from "./toFriendlyDuration.mjs";
 
 export default {
+
+	// Complex helpers
 	"dd-schemaOptions": schemaOptions,
 	"dd-array": createArray,
 	"dd-toFriendlyDuration": toFriendlyDuration,
 	"dd-objectValue": objectValue,
 	"dd-expanded": detailsExpanded,
+
+	// Simple helpers
 	"dd-stringify": v => JSON.stringify(v, null, `  `),
-	"dd-negate": v => !v,
+
+	// Logic helpers
+	"eq": (a, b) => a == b,
+	"neq": (a, b) => a != b,
+	"not": v => !v,
+	"or": (a, b) => a || b,
+	"and": (a, b) => a && b,
+	"nor": (a, b) => !(a || b),
+	"nand": (a, b) => !(a && b),
+	"xor": (a, b) => (a || b) && !(a && b),
+	"xnor": (a, b) => !((a || b) && !(a && b))
 };
\ No newline at end of file
diff --git a/templates/actors/char-sheet-mvp/partials/stat.hbs b/templates/actors/char-sheet-mvp/partials/stat.hbs
index 53f6522..989b5c7 100644
--- a/templates/actors/char-sheet-mvp/partials/stat.hbs
+++ b/templates/actors/char-sheet-mvp/partials/stat.hbs
@@ -4,7 +4,7 @@
 		data-stat="{{name}}"
 		data-roll-formula="1{{value}}"
 		data-roll-label="dotdungeon.rolls.stats.{{name}}"
-		{{disabled (dd-negate (dd-objectValue system (concat "stats." name)))}}
+		{{disabled (not (dd-objectValue system (concat "stats." name)))}}
 	>
 		{{localize (concat "dotdungeon.actor.pc.stat." name)}}
 	</button>