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DefeatKind

qualia_core_db::modalities::logic::deontic

Enum DefeatKind 

Source 
#[repr(u8)]
pub enum DefeatKind {
    None = 0,
    Rebutting = 1,
    Undercutting = 2,
}
Expand description

How a norm came to be DeonticStatus::Defeated — Hart/Pollock’s rebutting vs undercutting distinction. A rebutting defeater asserts the contrary conclusion (DEFEATER_BIT + an O/P/F opcode); an undercutting defeater (OP_UNDERCUT) severs the rule’s support without asserting the contrary.

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None = 0

Not defeated.

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Rebutting = 1

Defeated by a contrary norm (rebutting).

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Undercutting = 2

Defeated by link-invalidation (undercutting).

Trait Implementations§

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impl Clone for DefeatKind

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fn clone(&self) -> DefeatKind

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for DefeatKind

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for DefeatKind

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fn default() -> DefeatKind

Returns the “default value” for a type. Read more
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impl PartialEq for DefeatKind

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fn eq(&self, other: &DefeatKind) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for DefeatKind

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impl Eq for DefeatKind

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impl StructuralPartialEq for DefeatKind

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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fn equivalent(&self, key: &K) -> bool

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fn equivalent(&self, key: &K) -> bool

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