OCR GCSE (J277) SLR 2.4 Combining Boolean operators This video illustrates how we can combine the different Boolean operators. Also in this topic... OCR GCSE (J277) SLR 2.4 Simple logic diagrams OCR GCSE (J277) SLR 2.4 Truth tables OCR GCSE (J277) SLR 2.4 Applying logical operators in truth tables