Difference between AND vs OR logic in segments, workflows, lead scoring, and reports

There are two types of logic for multiple segment filters, workflow enrollment triggers, lead scoring criteria, and report filters: 

• AND logic
• OR logic

AND logic

To identify objects that meet all criteria within a set of filters, use AND logic.

For example, to identify contacts that are from North America AND have a Lifecycle Stage of Customer, click AND before adding the second filter or trigger. When using this AND criteria, only contacts who are North American customers will be included.

Only contacts who meet the criteria in the shaded area will be included.

OR logic

To identify objects that meet at least one criteria within a set of segment filters, report filters, or workflow enrollment triggers, use OR logic.

For example, to identify contacts that are from North America OR have a lifecycle stage of Customer, click OR before adding the second filter or trigger. When using this OR criteria, all contacts from North America, contacts who have a lifecycle stage of customer, and contacts who are North American customers will be selected. 

Contacts who meet the criteria in all sections will be included.