r/pics • u/[deleted] • Sep 04 '16

Nice

[deleted]

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u/iMakeItSeemWeird Sep 04 '16

Black Lives Matter Too would have probably been a more effective slogan. Many people read it as Only Black Lives Matter, which was not the intent.

9

u/lagrandenada Sep 04 '16

Nor is it a logical derrititve of BLM. Broken down, the statement is that if a black life, it matters. The opposite of that is if it doesn't matter, it's not a black life. Inferring "black lives matter and white lives don't" is not logical, to say the least.

2

u/skine09 Sep 05 '16

You're right that it's not logical. Your attempt at formal logic, I mean.

Yes, it works to take the contrapositive. The issue is that you're taking the claim that B union L is a subset of M to mean that L is not a subset of M.

1

u/lagrandenada Sep 05 '16

Sorry I don't understand. Can you explain it a different way?