caption: The Cardinal Number of the Union of Two Sets
exif: {"Image DocumentName": "The Cardinal Number of the Union of Two Sets", "Image ImageDescription": "If A and B are sets, then n(A \uf0c8 B) = n(A) + n(B) \u2013 n(A \uf0c7 B)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}