Double Nested Less-Than ⪡

⪡ (U+2AA1) is a standard Unicode character that you can copy and paste anywhere text is accepted. This page provides a concise reference with safe tips, internal links, and practical guidance so you can use it reliably across apps and platforms.

What it is and where it’s used: Double Nested Less-Than is part of the Symbols family (block: Supplemental Mathematical Operators). If you need styled or decorative alternatives, try our Fancy Text tool to generate compatible text that works in most modern interfaces.

History & usage: The character DOUBLE NESTED LESS-THAN has the codepoint U+2AA1 in the Supplemental Mathematical Operators block. It is a symbol used in math and in user interfaces to show a specific kind of comparison. The name in English is descriptive: it signals nested or layered relations beyond a simple less-than. In practice, authors may use this symbol to indicate a deeper or more complex ordering. It appears in formal formulas and in tools that display math, where precise notation matters. The symbol is part of a family of operators that extend the basic set of signs for comparisons and relations. In history, such symbols were added to cover advanced ideas in mathematics and logic. By design, it communicates a clear relation without spelling out the steps. In daily use, the symbol helps readers understand nested structures at a glance. The usage note for this symbol says that common math signs indicate operations or comparisons in formulas and user interfaces. This keeps math content precise and accessible across contexts.

Copy and input: the quickest method is to copy the character here. You can also insert it by its codepoint U+2AA1 in many development tools or editors. Some operating systems provide a character viewer or input palette that lets you search by name or code and insert the glyph into documents.

Display and fallback: if you see an empty box (tofu) or a placeholder rectangle, the active font might not include this codepoint. Switching to a font with broader Unicode coverage or using a fallback font usually fixes the issue. On the web, ensure the page’s font stack includes a general‑purpose fallback.

Related references: browse the Categories for similar characters. When choosing a symbol, prefer the official codepoint for semantic clarity and better compatibility with search, copy, and accessibility tooling.

See our category page for related symbols.