writetwo-columnproofs.The factsor relationshipsthat we proveare calledtheorems.
LessonExercises
Mustthe third sentencebe true if the first two sentencesare true?Explainyour answer.
- Peoplewho vote for JaneWannabeare smartpeople.
I am a smartperson.
I will vote for JaneWannabe.
- If Rae is the drivertodaythen Mariais the drivertomorrow.
Ann is the drivertoday.
Mariais not the drivertomorrow.
- All equiangulartrianglesare equilateral.
is equiangular.is equilateral.Whatadditionalstatementmustbe true if the givensentencesare true?
- If West wins,then East loses.
If Northwins,then West wins.
- If then.
If then..
Fill in the truth tables.