Logica
Tools
for
Thought
Fitch
Copy
Load
Save
Library
Objects:
a, b, c
Functions:
f, g
1
p => (q => r)
Premise
2
p => q
Premise
3
p
Assumption
4
q => r
Implication Elimination
1
3
5
q
Implication Elimination
2
3
6
r
Implication Elimination
4
5
7
p => r
Implication Introduction
3
6
