Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Axiom schema
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==Formal definition== An axiom schema is a [[well-formed formula|formula]] in the [[metalanguage]] of an [[axiomatic system]], in which one or more [[schematic variable]]s appear. These variables, which are metalinguistic constructs, stand for any [[First-order logic#Formation rules|term]] or [[first-order logic|subformula]] of the system, which may or may not be required to satisfy certain conditions. Often, such conditions require that certain variables be [[free variable|free]], or that certain variables not appear in the subformula or term{{citation needed|date=August 2018}}.
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)