I have to prove this in Fitch without using any of the cons
closed as off-topic by Conifold, Eliran, Graham Kemp, YiFan, Mauro ALLEGRANZA Mar 21 at 7:03
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context. Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – Conifold, Eliran, Graham Kemp, YiFan, Mauro ALLEGRANZA
Below is a generated truth table for the statement "((A or B)&&(~C or ~B))=>(A or D)".
Note the line where the result is False (F).
Stanford Truth Table Tool, http://web.stanford.edu/class/cs103/tools/truth-table-tool/