John Halleck's Data for Modal Logic System S4:

# The distinct modality pattern for the modal logic system S4
=duals
=normal
Lp => p
Lp => LMLp
LMLp => MLp
LMLp => LMp

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© Copyright 2000 by John Halleck, All Rights Reserved.
This snapshot was last modified on August 23rd, 2000
And the underlying file was last modified on July 11th, 2000