# -*- coding: utf-8 -*-
# pytableaux, a multi-logic proof generator.
# Copyright (C) 2014-2023 Doug Owings.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
from . import LogicType
from . import fde as FDE
from . import k3 as K3
from . import kk3 as KK3
from . import s4fde as S4FDE
class Meta(KK3.Meta):
name = 'S4K3'
title = 'K3 with S4 modal'
description = 'Modal version of K3 based on S4 normal modal logic'
category_order = 9
extension_of = ('TK3', 'S4FDE')
class Model(S4FDE.Model): pass
class System(FDE.System): pass
[docs]
class Rules(LogicType.Rules):
closure = K3.Rules.closure
groups = S4FDE.Rules.groups