LEFT_OR_EXISTS_CONV : conv

- STRUCTURE
- SYNOPSIS
- Moves an existential quantification of the left disjunct outwards through a disjunction.
- DESCRIPTION
- When applied to a term of the form (?x.P) \/ Q, the conversion LEFT_OR_EXISTS_CONV returns the theorem:where x' is a primed variant of x that does not appear free in the input term.
|- (?x.P) \/ Q = (?x'. P[x'/x] \/ Q)

- FAILURE
- Fails if applied to a term not of the form (?x.P) \/ Q.
- SEEALSO

HOL Kananaskis-14