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What is the contrapositive of the statement "If a mineral's structure is cubic, then it's not gold"?

joshalex768 Mar 1, 2019

#1**+1 **

If it's gold, then the mineral's structure is not cubic

Never worked with contrapositives before, but I think this is right

LagTho Mar 1, 2019

#2**+1 **

contrapositive

conversion of a proposition **from** all A is B **to** all not-B is not-A. (Google definition)

**Statement**

If a mineral's structure **is** cubic, then it **is** not gold

A=mineral's structure is (cubit)

B=it is (not gold)

If A then B

**contrapositive**

A=mineral's structure is (cubit)

B=it is (not gold)

all not-B is not-A

If it is **not** (not gold) then it's mineral structure is **not** (cubic.)

If it is **gold** then it's mineral structure is **not** cubic.

Melody Mar 2, 2019