<child>
<widget class="GtkHBox" id="hbox18">
<property name="visible">True</property>
+ <property name="spacing">2</property>
<child>
<widget class="GtkHandleBox" id="TacticsButtonsHandlebox">
<property name="visible">True</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
- <property name="label" translatable="yes">Negaton (¬_i)</property>
+ <property name="label" translatable="yes">Negation (¬_i)</property>
<property name="response_id">0</property>
</widget>
<packing>
<property name="position">5</property>
</packing>
</child>
+ <child>
+ <widget class="GtkButton" id="butForall_intro">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="label" translatable="yes">Universal (∀_i)</property>
+ <property name="response_id">0</property>
+ </widget>
+ <packing>
+ <property name="position">6</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkButton" id="butExists_intro">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="label" translatable="yes">Existential (∃_i)</property>
+ <property name="response_id">0</property>
+ </widget>
+ <packing>
+ <property name="position">7</property>
+ </packing>
+ </child>
</widget>
</child>
<child>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
- <property name="label" translatable="yes">Negaton (¬_e)</property>
+ <property name="label" translatable="yes">Negation (¬_e)</property>
<property name="response_id">0</property>
</widget>
<packing>
<property name="position">5</property>
</packing>
</child>
+ <child>
+ <widget class="GtkButton" id="butForall_elim">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="label" translatable="yes">Universal (∀_e)</property>
+ <property name="response_id">0</property>
+ </widget>
+ <packing>
+ <property name="position">6</property>
+ </packing>
+ </child>
+ <child>
+ <widget class="GtkButton" id="butExists_elim">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="label" translatable="yes">Existential (∃_e)</property>
+ <property name="response_id">0</property>
+ </widget>
+ <packing>
+ <property name="position">7</property>
+ </packing>
+ </child>
</widget>
</child>
<child>
</widget>
</child>
<child>
- <widget class="GtkButton" id="butStart">
+ <widget class="GtkButton" id="butUseLemma">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
- <property name="label" translatable="yes">Prove (to start)</property>
+ <property name="label" translatable="yes">Use lemma (lem)</property>
<property name="response_id">0</property>
</widget>
<packing>
<property name="position">1</property>
</packing>
</child>
+ <child>
+ <widget class="GtkButton" id="butDischarge">
+ <property name="visible">True</property>
+ <property name="can_focus">True</property>
+ <property name="receives_default">True</property>
+ <property name="label" translatable="yes">Discharge (discharge)</property>
+ <property name="response_id">0</property>
+ </widget>
+ <packing>
+ <property name="position">2</property>
+ </packing>
+ </child>
</widget>
</child>
<child>