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Mathematics, 16.10.2019 16:00 mostman077

Given: al=sk
prove: as=lk
1.al=sk given
2. ls=ls reflexive property
3. al+ls=sk+ls substitution property
4. al+ls=as transitive property
5. sk+ls=lk ?
6 as=lk ?

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Given: al=sk
prove: as=lk
1.al=sk given
2. ls=ls reflexive property
3. al+...
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