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## Homework Statement

F(A,B,C,D) = (sum of) m (2,3,5,7,11,13)

Design a two level network to implement the above sum of products:

## Homework Equations

F(A,B,C,D) = (sum of) m (2,3,5,7,11,13)

## The Attempt at a Solution

Code:

```
K-map
___Ab
CD|00..01..11..10
00|
01|1...1....1
11|1...1.........1
10|
```

F = CA' + CDB + CD'B'

F = CA' + C (DB + D'B')

F = CA' + C(D xor B)'

F = CA' + CD xor CB'

now can i factor out the C? This has to be two level so I'm thinking it'd take up two different blocks of logic gates.

Any help?