Conditional Statements A conditional statement is in the

  • Slides: 12
Download presentation
Conditional Statements A conditional statement is in the form If ……. . Then……. The

Conditional Statements A conditional statement is in the form If ……. . Then……. The HYPOTHESIS is the condition of the statement and appears after the IF. The CONCLUSION is the result and occurs after the THEN.

When it rains, it pours. • Written in correct conditional form: • If it

When it rains, it pours. • Written in correct conditional form: • If it rains, then it pours.

When it rains, it pours • • • If it rains, then it pours.

When it rains, it pours • • • If it rains, then it pours. Identify the Hypothesis and Conclusion. Hypothesis : It rains Conclusion: it Pours Note: Do NOT include the IF and THEN when identifying

Regular conditional p q • • Converse: q p Switch hypothesis and conclusion New

Regular conditional p q • • Converse: q p Switch hypothesis and conclusion New symbol ~ means Not (in logic) Inverse ~ p ~ q Negate the hypothesis and conclusion Contrapositive ~ q ~ p Switch and negate both

If it rains, it pours. • Regular conditional:

If it rains, it pours. • Regular conditional:

If it rains, it pours. • Regular conditional: • If it rains, then it

If it rains, it pours. • Regular conditional: • If it rains, then it pours. • Converse:

If it rains, it pours • Regular conditional: • If it rains, then it

If it rains, it pours • Regular conditional: • If it rains, then it pours. • Converse: • If it pours, then it rains.

If it rains, then it pours. • To negate a phrase, add “NOT”. •

If it rains, then it pours. • To negate a phrase, add “NOT”. • You may also need to modify the verb, so that it is good grammar. • Inverse: • If it doesn’t rain, then it doesn’t pour.

If it rains, then it pours. • Contrapositive: (Switch and negate)

If it rains, then it pours. • Contrapositive: (Switch and negate)

If it rains, then it pours. • Contrapositive: (Switch and negate) • If it

If it rains, then it pours. • Contrapositive: (Switch and negate) • If it doesn’t pour, then it doesn’t rain.

If you are rushed, you won’t do well • Conditional: If you are rushed,

If you are rushed, you won’t do well • Conditional: If you are rushed, then you won’t do well. • Converse: If you don’t do well, then you are rushed. • Inverse: If you aren’t rushed, then you will do well. • Contrapositive: If you do well, then you aren’t rushed.

Changing a statement to a conditional statement • Just about any statement can be

Changing a statement to a conditional statement • Just about any statement can be changed into the “If…. . then…. . ” form! • School closes when it snows. • If it snows, then school closes. • All new cars are expensive! • If it’s a new car, then it’s expensive. • All people have feelings. • If he’s a person, then he has feelings.