How do i make a Euler diagram to determine whether the syllogism is valid or invalid? I have never done one before...

Some nurses are patient.
Tracey is a nurse.
(3 dots that look like triangle) Tracey is patient.

Question

How do i make a Euler diagram to determine whether the syllogism is valid or invalid? I have never done one before...

Some nurses are patient.
Tracey is a nurse.                       
(3 dots that look like triangle) Tracey is patient.

jim_thompson5910 · Answer

Draw a circle to represent the set of nurses

anonymous · Answer

i know its 3 circles...
one with Nurses.
patients
then Tracy is a patient 
 right?

jim_thompson5910 · Answer

very close, but the last one is just a point and not a circle

jim_thompson5910 · Answer

the "nurses" and "patients" circles are related how visually?

anonymous · Answer

well nurses are patients

jim_thompson5910 · Answer

do they overlap? does one contain the other?

jim_thompson5910 · Answer

some nurses are patients, not all

jim_thompson5910 · Answer

so because some (but not all) are patients, the two circles overlap

jim_thompson5910 · Answer

but one is not completely contained in the other

anonymous · Answer

ok.. so the 2 circles would over lap and one has nurses and other has patients and then a DOT in patient?

jim_thompson5910 · Answer

the dot would lie in the nurses circle because it's given that tracey is a nurse

jim_thompson5910 · Answer

but because that dot can easily lie outside the patients circle, this means that just because tracey is a nurse, this doesn't automatically make her a patient

jim_thompson5910 · Answer

so you show this by placing the dot outside the "patient" circle (but inside the "nurses" circle)

jim_thompson5910 · Answer

therefore, the argument is invalid

anonymous · Answer

heres a question.. how would i do the circles on word? im new to word. lol i found the shapes but it wont let me type in either circles

jim_thompson5910 · Answer

probably best to draw in the circles by hand and typing in any words over top of it

anonymous · Answer

i have to submit online.

jim_thompson5910 · Answer

oh ok, one sec

jim_thompson5910 · Answer

attached is the venn diagram that you should have gotten, notice how the point tracey can lie outside the "patients" circle, which means that she is not a patient (100% of the time) if she is a nurse.

anonymous · Answer

oh ok...

anonymous · Answer

ty hon..

jim_thompson5910 · Answer

np

jim_thompson5910 · Answer

btw I did that with paint, so I'm betting that ms word has something close to it. If not, then use paint to draw and copy/paste

anonymous · Answer

ok i will try that..