# How to decide 3rd Boolean based on 2 Boolean values **URL:** \ **Category:** Ask for Help\ **Created:** [July 17, 2021, 2:01pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215 "2021-07-17T14:01:03Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Shiv](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/shiv/32/25831_2.png) [@Shiv](https://community.glideapps.com/u/Shiv)\ **Post date:** [July 17, 2021, 2:01pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/1 "2021-07-17T14:01:03Z")
I have 2 boolean columns and I want to compute a 3rd boolean column based on the values in the first two. I realized I can’t do that using IF-THEN-ELSE as there is no AND condition to merge 2 columns ( if am using it right ). A and B are my existing and I want to set the value of C based on the previous 2 values. I have set the visibility of B based on my value of A. But my catch here is that a user can set B as TRUE and then A as TRUE where the value of B gets saved (as TRUE) which I don’t want. What I want A B C 0 0 0 0 1 1 1 0 0 1 1 0 What is the approach that I should take? Thanks in advance. -Shiv ---
**Author:** ![Shiv](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/shiv/32/25831_2.png) [@Shiv](https://community.glideapps.com/u/Shiv)\ **Post date:** [July 17, 2021, 2:04pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/2 "2021-07-17T14:04:41Z")
I tried an if-then-else where if A is TRUE then am setting C as FALSE. But in this situation when i set A as FALSE and B as TRUE then C is not coming as TRUE ( which is my primary expectation ). -Shiv ---
**Author:** ![Marc-Olivier](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@Marc-Olivier](https://community.glideapps.com/u/Marc-Olivier)\ **Post date:** [July 17, 2021, 2:21pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/3 "2021-07-17T14:21:35Z")
Hey there Very easy you can add two booleans each true boolean is one. So you do a math column and you do 2 times boolean A + 1 time boolean B. A B C (=2\*A+B) 0 0 0 0 1 1 1 0 2 1 1 3 et voilà 🙂 Marco ---
**Author:** ![Shiv](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/shiv/32/25831_2.png) [@Shiv](https://community.glideapps.com/u/Shiv)\ **Post date:** [July 17, 2021, 2:50pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/4 "2021-07-17T14:50:21Z")
> [@Marc-Olivier](#): > > So you do a math column and you do 2 times boolean A + 1 time boolean B. @Marc-Olivier But what you are showing gives me C as a numerical value but i need a Boolean value. -Shiv ---
**Author:** ![Jeff\_Hager](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/jeff_hager/32/43_2.png) [@Jeff\_Hager](https://community.glideapps.com/u/Jeff_Hager)\ **Post date:** [July 17, 2021, 2:56pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/5 "2021-07-17T14:56:48Z")
If B is False Then False ElseIf A is True Then False Else True ---
**Author:** ![Marc-Olivier](https://avatars.discourse-cdn.com/v4/letter/m/ac91a4/32.png) [@Marc-Olivier](https://community.glideapps.com/u/Marc-Olivier)\ **Post date:** [July 17, 2021, 3:16pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/6 "2021-07-17T15:16:36Z")
So you want false and not true when both A and B (accidently) are true as B appears when A is set to true. Is that right? ---
**Author:** ![Shiv](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/shiv/32/25831_2.png) [@Shiv](https://community.glideapps.com/u/Shiv)\ **Post date:** [July 17, 2021, 3:19pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/7 "2021-07-17T15:19:49Z")
> [@Jeff\_Hager](#): > > If B is False Then False > ElseIf A is True Then False > Else True YES YES YES - this worked 🙂 Took me a while to figure out how it worked but yes it does what i wanted to. Thanks a ton @Jeff_Hager -Shiv ---
**Author:** ![NoCodeAndy](https://sea2.discourse-cdn.com/flex002/user_avatar/community.glideapps.com/nocodeandy/32/62530_2.png) [@NoCodeAndy](https://community.glideapps.com/u/NoCodeAndy)\ **Post date:** [January 17, 2024, 4:51pm UTC](https://community.glideapps.com/t/how-to-decide-3rd-boolean-based-on-2-boolean-values/29215/8 "2024-01-17T16:51:24Z")