| [1] | Marriage is a contract between a man and a woman (in North America). |
| [2] | You can’t (in North America) marry (or be married to) more than one person at a time. |
| [3] | It is permissible that married people have sex with one another (in North America). |
| [4] | It is widely believed (in North America) that it is wrong to have sex with a married person to whom you are not married. |
| [5] | Married people (in North America) generally live with each other and sleep in the same room. |
| [N] | In both 1919 and 2019, people in North America thought that married people mostly sleep in the same room. |
| [O] | Married people mostly sleep in the same room. |
Figure 1
The Assumptions of the Case-Based Argument against (RA).
Figure 2
The Dilemma for the Argument for (RA).