#

## 2.4.8.20 Sharpsign Less-Than-Sign

`#<` is not valid reader syntax. The Lisp reader will signal an error of type reader-error on encountering `#<`. This syntax is typically used in the printed representation of objects that cannot be read back in.

The following X3J13 cleanup issue, not part of the specification, applies to this section:

- PARSE-ERROR-STREAM:SPLIT-TYPES

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