{"id":16941,"date":"2026-07-09T12:54:17","date_gmt":"2026-07-09T09:54:17","guid":{"rendered":"https:\/\/loquiz.com\/support\/?p=16941"},"modified":"2026-07-09T13:00:16","modified_gmt":"2026-07-09T10:00:16","slug":"not-block","status":"publish","type":"post","link":"https:\/\/loquiz.com\/support\/not-block\/","title":{"rendered":"NOT BLOCK"},"content":{"rendered":"\n

UI name in toolbox:<\/strong> logic_negate<\/code> (Blockly built-in)<\/p>\n\n\n\n

Definition:<\/strong> A NOT block inverts a Boolean condition. It returns true when the original condition is false, and vice versa.<\/p>\n\n\n\n

Block type:<\/strong> Value block, output type Boolean<\/p>\n\n\n\n

What it does:<\/strong> Reverses the boolean logic of a single condition.<\/p>\n\n\n\n

How to build it:<\/strong><\/p>\n\n\n\n

    \n
  1. Drag logic_negate<\/code> from the Logic category<\/li>\n\n\n\n
  2. Connect a Boolean condition to the input socket<\/li>\n<\/ol>\n\n\n\n

    How it works:<\/strong><\/p>\n\n\n\n

      \n
    • Takes one condition as input<\/li>\n\n\n\n
    • Returns the opposite of its truth value<\/li>\n\n\n\n
    • TRUE becomes FALSE; FALSE becomes TRUE<\/li>\n<\/ul>\n\n\n\n

      When to use:<\/strong><\/p>\n\n\n\n

        \n
      • Inverting conditions (e.g., “NOT Task Finished” instead of creating the opposite)<\/li>\n\n\n\n
      • Creating negative triggers<\/li>\n\n\n\n
      • Simplifying complex logic<\/li>\n<\/ul>\n\n\n\n

        Example (Simple):<\/strong>
        Connect: logic_negate<\/code> with [task] finished<\/code> inside
        Result: TRUE while the task can still be answered; FALSE once task is finished<\/p>\n\n\n\n

        Example (Combining with other logic):<\/strong>
        Block: (logic_negate<\/code> \u2192 [task 1] finished<\/code>) AND timer > 5 min<\/code>
        Result: Triggers when Task 1 is NOT finished AND timer exceeds 5 minutes<\/p>\n\n\n\n

        Example (Edge Case – Double negation):<\/strong>
        NOT (NOT Task Finished) = Task Finished
        Result: Double negation cancels out, creating confusion; avoid this pattern<\/p>\n\n\n\n

        Notes:<\/strong><\/p>\n\n\n\n

          \n
        • Takes exactly one Boolean condition as input<\/li>\n\n\n\n
        • Can be nested for complex logic (though not recommended for clarity)<\/li>\n\n\n\n
        • Commonly used in deactivation logic<\/li>\n<\/ul>\n\n\n\n

          Common mistakes:<\/strong><\/p>\n\n\n\n

            \n
          • Using NOT on multiple conditions (use AND\/OR blocks instead)<\/li>\n\n\n\n
          • Creating double negation for unclear reasons<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

            UI name in toolbox: logic_negate (Blockly built-in) Definition: A NOT block inverts a Boolean condition. It returns true when the original condition is false, and vice versa. Block type: Value block, output type Boolean What it does: Reverses the boolean logic of a single condition. How to build it: How it works: When to use: […]<\/p>\n","protected":false},"author":23,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[150],"tags":[3821],"class_list":["post-16941","post","type-post","status-publish","format-standard","hentry","category-0-important-to-know","tag-blocks"],"acf":[],"yoast_head":"\nNOT BLOCK - Loquiz knowledgebase<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/loquiz.com\/support\/not-block\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NOT BLOCK - Loquiz knowledgebase\" \/>\n<meta property=\"og:description\" content=\"UI name in toolbox: logic_negate (Blockly built-in) Definition: A NOT block inverts a Boolean condition. It returns true when the original condition is false, and vice versa. Block type: Value block, output type Boolean What it does: Reverses the boolean logic of a single condition. 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