Antigram¶
antigram · letter · validated
An anagram whose rearrangement means the opposite of its source, so the letters contradict themselves. The checker verifies the anagram and that the text differs from its source; whether the sense is genuinely opposite is a judgement no program makes.
Provenance¶
- Source: Word Ways, the Journal of Recreational Linguistics (1968 onwards)
- Attribution:
reference— attested in a standard reference rather than traced to an origin - Checkability:
source— decidable against the source text it was made from - Attested:
codified— formulated as a rule by a tradition rather than declared by an author
Details¶
- Kind: restrictive
- Languages: en
- Requires:
tokens,fold_diacritics - Deterministic: yes
Prompt hint¶
Rearrange the phrase into one that means its opposite, using every letter once.
Parameters¶
| Name | Type | Default | Description |
|---|---|---|---|
allow_subset |
boolean | False |
Accept a transposal — a candidate built from some of the source's letters rather than all of them. Surplus letters are refused either way. |
fold_diacritics |
boolean | True |
Treat accented letters as their base letter, and ß as ss. |
source |
string | — |
The text this one was made from. |
Examples¶
rearranged¶
en — this text satisfies the procedure.
silent
Parameters: source='listen'
Source: constructed example; the term is from Word Ways
unchanged¶
en — this text does not satisfy the procedure.
listen
Parameters: source='listen'
Source: constructed counterexample