lean2/library/standard/logic/connectives/connectives.md

logic.connectives

Logical operations and connectives.

• prop : the type Prop
• basic : propositional connectives
• eq : equality and disequality
• cast : casts and heterogeneous equality
• quantifiers : existential and universal quantifiers
• if : if-then-else
• instances : type class instances
• identities : some useful identities
• examples