Some mathematicians, especially in set theory, do not consider the sets and to be part of the relation, and therefore define a binary relation as being a subset of x, that is, just the graph.

Some of these are challenging to sequence because they have more than two haploid ( n ) sets of chromosomes, a condition known as polyploidy, common in the plant kingdom.

As noted above, this terminology is not universal: Some authors use countable to mean what is here called " countably infinite ," and to not include finite sets.

Some sets are infinite ; these sets have more than n elements for any integer n. For example, the set of natural numbers, denotable by, has infinitely many elements, and we cannot use any normal number to give its size.

Some undefined conversation is shared lazily, the sun sets ; then Marlow states how their location also " has been one of the dark places of the earth.

Some companies have a telecom team that is responsible for the phone infrastructure such as PBX, voicemail, VOIP, telephone sets, modems and fax machines.

Some sets are specific to a locale, or even to a single session, whilst others, like the " Coleman set " of reels (" The Tarbolton "/" The Longford Collector "/ The Sailor's Bonnet "), represent longstanding combinations that have been played together for decades.

Some sets include racks to hold tiles ( if they are shaped small or differently ).

Some references require a null set to be measurable ; however, subsets of null sets are still negligible for measure-theoretic purposes.

Some authors consider merely finitely additive probability spaces, in which case one just needs an algebra of sets, rather than a σ-algebra.

Some RISC processors such as the PowerPC have instruction sets as large as, say, the CISC IBM System / 370 ; and conversely, the DEC PDP-8 — clearly a CISC CPU because many of its instructions involve multiple memory accesses — has only 8 basic instructions, plus a few extended instructions.

Some medications produce an increased risk of seizures and electroconvulsive therapy ( ECT ) deliberately sets out to induce a seizure for the treatment of major depression.

Some early single hose scuba sets used full-face masks instead of a mouthpiece, such as those made by Desco and Scott Aviation ( who continue to make breathing units of this configuration for use by firefighters ).

Some scuba sets incorporate attached extra stage cylinders, as bailout in case the main breathing gas supply is used up or malfunctions, or containing another gas mixture.

Some wheat species are diploid, with two sets of chromosomes, but many are stable polyploids, with four sets of chromosomes ( tetraploid ) or six ( hexaploid ).

Some bands are even using small plastic pouches that hang about their neck on an adjustable strap, which has a zipper pocket for holding drill, flags to mark sets, and a pencil.

Some television sets can be set to automatically turn captioning on when the volume is muted.

Some observers hold that individuals apply distinct sets of moral rules to people depending on their membership of an " in-group " ( the individual and those they believe to be of the same culture or race ) or an " out-group " ( people not entitled to be treated according to the same rules ).

Some sets are released in many countries, while others are only issued in one or two.

* Some sets are neither open nor closed, for instance the half-open interval < nowiki >

Some low-cost sets ( especially those sold in toy stores ) may use red and black squares and include pieces for both games ; though suitable for informal play, such boards are often not accepted for sanctioned play, depending on the local authority's rules on equipment standards.

Some operations available in most instruction sets include:

Some MIDI keyboard controllers are equipped with USB jacks, and can be plugged into computers that run music software.

Some 1960s electronic organs used reverse colors or gray sharps or naturals to indicate the lower part ( s ) of a split keyboard: one divided into two parts, each of which produces a different Registration or sound.

Some users may choose a chorded keyboard for one-handed use.

Some users find that data input is quicker on their computer than on their PDA, since text input via a touchscreen or small-scale keyboard is slower than a full-size keyboard.

Some are able to clip onto the side of the keyboard and have buttons with the same functionality as mouse buttons .< ref >" tracker ball.

Some countries, such as the UK and Canada, use a slightly different QWERTY ( the @ and " are switched in the UK ); see keyboard layout.

Some small thumbballs clip onto the side of the keyboard and have integral buttons with the same function as mouse buttons.

Some such systems had only a computer and synthesis modules, no keyboard.

Some also include the front ensemble keyboard percussion, and may also incorporate the use of a color guard for flag and rifle routines.

Some features and keyboard shortcuts now commonly found in web browsers can be traced to Nextstep conventions.

Some electrical multiplexing techniques do not require a physical " multiplexer " device, they refer to a " keyboard matrix " or " Charlieplexing " design style:

Some instruments have both a keyboard and a mechanism for automated operation, others only one or the other.

Some of the hymns and antiphons for keyboard and for consort may also date from this period, though it is also possible that the consort pieces may have been composed in Lincoln for the musical training of choirboys.

Some early critics were quick to dismiss the band as clones of Peter Gabriel-era Genesis due to musical similarities, such as their extended songs, a prominent and Mellotron-influenced keyboard sound, vivid and fantastical lyrics and the equally vivid and fantastical artwork by Mark Wilkinson used for the sleeves of their albums and singles.

* Some international models of adding machines and printing calculators use the asterisk to denote the total, or the terminal sum or difference of an addition or subtraction sequence, respectively, sometimes on the keyboard where the total key is marked with an asterisk and sometimes a capital T, and on the printout.

Some fusion, R & B and house music groups use synth bass or keyboard bass rather than electric bass.

Some video game consoles also have the ability to function with a keyboard and a mouse.

Some systems could have the graphics card removed so that they could be used as a servers ; in such a case the keyboard and mouse were automatically ignored, and the system accessed either across the network, or via a dumb terminal plugged into the machine's serial port.

Some have mistakenly stated that many visual ideas, such as the quick editing, the close-ups of machinery, the store window displays, even the shots of a typewriter keyboard are borrowed from Walter Ruttmann's Berlin: Symphony of a Great City ( 1927 ), which predates Man with a Movie Camera by two years, but as Vertov wrote to the German press in 1929, these techniques and images had been developed and employed by him in his Kino-Pravda newsreels and documentaries for the last ten years, all of which predate Berlin.

* Some sort of code with symbols, not existing on the keyboard or the ASCII code.

Some design features from the ill-fated Apple III lived on in the Apple IIGS, such as GS / OS borrowing elements from SOS ( including, by way of ProDOS, the SOS filesystem ), a unique keyboard feature for dual-speed arrow keys, and colorized ASCII text.

Some children, however, can produce pitches that surpass the upper limit of the keyboard.

Some manufacturers and retailers ( for example: Yamaha ) divide their keyboard products into the following categories: