Mathematical notation Memes

The mathematical notation equivalent of a heart attack. In math, "!" means factorial (multiply a number by all positive integers less than itself), but here it's being used like an exclamation point to emphasize inequalities. The author of this textbook is committing mathematical blasphemy that would make Euler roll in his grave. Imagine telling a mathematician "x > 0!" and watching them frantically calculate whether x is greater than 1 (since 0! = 1) before realizing you're just being dramatic about x being positive. Pure mathematical terrorism.

Math nerds, unite! This meme perfectly captures the evolution of mathematical sophistication. Starting with the classic "Q.E.D" (quod erat demonstrandum - "that which was to be shown"), moving to the empty box symbol, then the filled black box, and finally... "Q.E.F" (quod erat faciendum - "that which was to be done"). That last panel with the maniacal grin is every mathematician who's ever flexed by using the ultra-rare Q.E.F instead of Q.E.D to end their proof. It's basically the mathematical equivalent of dropping the mic!

This is a classic case of someone trying to apply mathematical set theory to social concepts without understanding how logical implications actually work! The notation in the title (A ⊇ B ⇒ A ⊆ B) is mathematically incorrect - if A contains B (superset), it doesn't imply that A is contained in B (subset). That's like saying "if all squares are rectangles, then all rectangles are squares" - which is demonstrably false! The tweet confuses subset relationships with categorical statements. In set theory, "trans women are women" would be expressed as "trans women ⊆ women" (trans women are a subset of women), but that doesn't logically imply the reverse statement "women ⊆ trans women" (all women are trans women). The person clearly slept through their discrete mathematics class and now thinks they've made some profound logical discovery. Next time, bring coffee to those 8 AM math lectures!

This is what happens when mathematicians get into arguments at dinner parties. The statement "f is not continuous at all the points of the closure of A" can mean either: 1. There exists at least one point where f is not continuous (woman yelling) 2. At every single point, f is not continuous (confused cat) This is why mathematicians obsess over quantifiers like "for all" and "there exists." One misplaced word and suddenly your function goes from "slightly problematic" to "completely broken." And that's how you turn a simple calculus problem into a three-hour debate that ruins Thanksgiving.

The mathematical gang wars are heating up! This meme pits four legendary trios against each other in the ultimate math showdown: Points (A, B, C) - the OGs of geometry, defining everything from triangles to coordinate systems. Unknowns (x, y, z) - the mysterious variables that haunt students' nightmares and refuse to be solved. Counters (i, j, k) - the unsung heroes of every programmer's for-loops and the basis vectors that make 3D space possible. Sets (N, R, C) - the sophisticated elites: natural numbers, real numbers, and complex numbers that form the foundation of all number systems. My money's on team Unknowns - they've been frustrating mathematicians since algebra was invented. What's your pick? (And let's not even start on the fierce rivalry between Greek letters and Roman numerals...)

The mathematical debate between Pokémon characters perfectly captures the chaos of factorial notation! In the first panel, the green character states "2!=2" which is mathematically correct (2 factorial equals 2), earning approval from the blue character. But when claiming "0!=1" in the second panel, both characters respond with hearts despite the green one previously rejecting it as wrong. Plot twist: 0! actually DOES equal 1 by mathematical definition! It's that rare moment when the seemingly absurd answer is correct, just like when your wildest hypothesis turns out to be true. The factorial function contains multitudes of surprises, much like these adorable creatures contain multitudes of opinions.

Nothing triggers mathematical PTSD quite like these abominations. Let's break down this parade of horrors: • That natural log with the subscript e is redundant torture - it's like saying "ATM machine" but for people who actually passed calculus • The square root of 2 with that tiny 2 on top? Pure sadism. Is it the square root or not? Make up your mind! • Sin⁻¹(x) looking like a reciprocal when it's actually the inverse function. Thirty years teaching and I still have to remind students it's not 1/sin(x) • And that x² = x×x monstrosity... I've failed students for less. Probably why my course evaluations are terrible. No wonder mathematicians drink.

When mathematicians discover they can write the same thing three different ways, they get unreasonably excited. The formula evolves from the clunky "cos(θ) + i sin(θ)" to the slightly fancier "cis(θ)" before reaching its final, elegant form "e iθ " - and suddenly everyone's wearing monocles and top hats. Euler's identity is basically mathematical fashion week, where the simplest expression wins. Next week: watching mathematicians fight over which notation is superior while the rest of us just try to remember how to do long division.

It's all about perspective in mathematics! One person sees the letter "E" while the other sees the mathematical symbol "∃" (there exists). In mathematical logic, this symbol is used to indicate that something exists - like "there exists an x such that x > 5." The genius of this meme is that both are correct depending on which side you're standing on! It's the perfect representation of how mathematicians and non-mathematicians can look at the exact same thing and see completely different meanings. Math nerds unite!

When your brain starts interpreting "lol" as |o| (absolute value of o), you've officially crossed the mathematical point of no return. For the uninitiated, absolute value gives you the distance of a number from zero, ignoring the sign. So the person is seeing internet slang as mathematical notation—a classic symptom of what we in the field call "terminal mathematics exposure." The irony of the username "the-real-numbers" responding with "lol" is just *chef's kiss* perfection. Mathematical brainrot is irreversible. Trust me, I've tried to cure mine with alcohol. Didn't work. Just calculated the ethanol concentration instead.

The mathematical community's obsession with creating new constants strikes again! Mathematicians literally took π (3.14159...), doubled it, and proudly declared "behold, τ (tau)!" — as if multiplying by 2 deserves its own Greek letter. Sure, τ = 2π represents a full circle in radians instead of a half-circle, making some formulas cleaner, but come on... it's just multiplication by 2. Next up: introducing Ω, the revolutionary concept of π × 3!

The eternal mathematical nightmare! That moment in a proof-based math class when your brain perfectly understands the concept but your hand refuses to translate it into formal notation. Your professor's confused expression matches this perfectly when you try to explain, "I swear I get it, I just can't... write it down properly." Mathematical intuition and mathematical rigor are like parallel lines—they understand each other's existence but never quite meet!