Call-with-current-continuation - Relation To Non-constructive Logic

Relation To Non-constructive Logic

The Curry-Howard correspondence between proofs and programs relates call/cc to Peirce's law, which extends intuitionistic logic to non-constructive, classical logic: ((α → β) → α) → α. Here, ((α → β) → α) is the type of the function f, which can either return a value of type α directly or apply an argument to the continuation of type (α → β). Since the existing context is deleted when the continuation is applied, the type β is never used and may be taken to be ⊥.

The principle of double negative elimination ((α → ⊥) → ⊥) → α is comparable to a variant of call-cc which expects its argument f to always evaluate the current continuation without normally returning a value.

Embeddings of classical logic into intuitionistic logic are related to continuation passing style translation.

Read more about this topic:  Call-with-current-continuation

Famous quotes containing the words relation to, relation and/or logic:

    “To be a good enough parent one must be able to feel secure in one’s parenthood, and one’s relation to one’s child...The security of the parent about being a parent will eventually become the source of the child’s feeling secure about himself.”
    —Bruno Bettelheim (20th century)

    “The whole point of Camp is to dethrone the serious. Camp is playful, anti-serious. More precisely, Camp involves a new, more complex relation to “the serious.” One can be serious about the frivolous, frivolous about the serious.”
    —Susan Sontag (b. 1933)

    “Though living is a dreadful thing
    And a dreadful thing is it
    Life the niggard will not thank,
    She will not teach who will not sing,
    And what serves, on the final bank,
    Our logic and our wit?”
    —Philip Larkin (1922–1986)