# -*- 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 ..tools import group
from . import LogicType
from . import fde as FDE
from . import k3 as K3
from . import kb3e as KB3E
from . import b3e as B3E
from . import s4b3e as S4B3E
from . import s5 as S5
from . import s5fde as S5FDE
class Meta(KB3E.Meta):
name = 'S5B3E'
title = 'B3E with S5 modal'
description = 'Modal version of B3E based on S5 normal modal logic'
category_order = 35
extension_of = ('S4B3E')
class Model(S5FDE.Model, B3E.Model): pass
class System(FDE.System): pass
[docs]
class Rules(LogicType.Rules):
closure = K3.Rules.closure
groups = (
*S4B3E.Rules.groups,
group(S5.Rules.Symmetric))