Add link to dual implication on implication page - #379
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The deduction script dualizes implications when applicable, but the relationship between an implication and its dual was not present in the database so far. This PR adds this relationship by adding a new column
dual_implication_idto theimplicationstable. As an application, the implication page now links to the dual if it exists.Example 1
The page for the implication
distributive => strict initial objectnow has a link to the dual implication, statingcodistributive => strict terminal object.Example 2
The crude monadicity theorem is linked to its dual, a criterion for comonadicity:
New database diagram
The database diagram now groups related tables together. Click for a larger version.