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Diffstat (limited to 'proofs/signatures/smt.plf')
| -rwxr-xr-x | proofs/signatures/smt.plf | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/proofs/signatures/smt.plf b/proofs/signatures/smt.plf index bbee2d49b..942e17df0 100755 --- a/proofs/signatures/smt.plf +++ b/proofs/signatures/smt.plf @@ -104,6 +104,9 @@ (! r2 (th_holds (not f)) (th_holds false))))) +; truth +(declare truth (th_holds true)) + ;; not not (declare not_not_intro |