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At first sight, this extension of the judgment form may appear to be a strange complication — it is not motivated by an obvious shortcoming of natural deduction, and it is initially confusing that the comma seems to mean entirely different things on the two sides of the turnstile.
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Some Related Sentences
At and first
At first they were only feathers and dark indistinguishable faces and bodies, hunched over their horses' heads.
At the first restaurant he sensibly pulled up to go in for his dinner, and as a consequence did not see Cobb strike the open range at the mouth of the canyon and head straight across the swells for Antler.
At first it had been just a romantic dream of his, the same as the idea of finishing Oxford after the war.
At first glance, this hero seems to be more rather than less of an individualist than any of his predecessors.
At first glance this appears strange: of all people, was not America founded by rugged individualists who established a new way of life still inspiring `` undeveloped '' societies abroad??
At this point Mrs. Frances Cupply, one of Wright's handsome daughters by his first wife, came from the house and tried to calm Miriam as she tore down a no visitors sign and smashed the glass pane on another sign with a rock.
At this point a working definition of idea is in order, although our first definition will have to be qualified somewhat as we proceed.
At the height of the first snowstorm we had, it was impossible for me to get medical attention needed during an emergency.
At two thirty he sent Fujimoto to the top of the wall at the northeast corner of the mission to keep an eye on the ridge road and give a signal when he first glimpsed the approach of Kayabashi's party.
At that time consideration will be given to whether in the light of the United States supplies of rice available for Title 1, disposal, India's production, consumption and stocks of food grains, other imports from the United States and countries friendly to the United States, India's storage capacity, and other related factors, any increase would be possible in the portion of the total rice programmed which is currently planned for procurement during the first year.
At first each child should do a kick-up by himself so that the teacher can determine those ready to work alone, and those who need help.
At first the patient felt stronger, and the hemoglobin rose to 13.8 gm., but on Oct. 20, 1958, he complained of `` caving in '' in his knees.
At any rate, Manchester did not lag far behind the first commercial system which was set up in 1844 between Baltimore and Washington.
At the very first, then, Brumidi was required, by the classically pyramidal shape of his central group, to fill in the triangular space above the seated girl on Liberty's right, before starting on the allegorical figures themselves.
At the end of the performance, Dave and Max came out into the brilliantly lit foyer among a surge of gowned and tuxedoed first nighters.
At the Fifteenth Anniversary ( 1896 ) as already quoted, Miss Upton projected with force and eloquence the Spelman of the Future as a college of first rank, with expanding and unlimited horizons.
At and sight
At the sight of Sally's happy face and carefree expression, Harmony's dark, brooding eyes quickly brightened with unshed tears.
At the time I was filled with self-pity at this separation, but in the years since I have come to understand that the sight of me was painful to them after that outcry.
At the wedding a quarrel took place between the rivals and Phineus was turned to stone by the sight of the Gorgon's head.
At the sight of the French, Troubridge abandoned the vessel and made strenuous efforts to rejoin Nelson.
" At its core, the gameplay is similar to classic shooter games ( such as Space Invaders ), presenting the player with the challenge of surviving while shooting every enemy in sight, but with its pseudo-3D first-person perspective giving environments a spatial representation that has a major effect on the level design and gameplay experience.
At its foundational level, Christian thought holds that "... in Christ, there is neither Jew nor Greek, slave nor free, man nor woman ", defining all as equal in the sight of God.
At first sight, this appears to be a reasonable assumption to make, as it seems to be a consequence of special relativity, which states that information can never be transmitted faster than the speed of light without violating causality.
At the same time, one of the Israelites brought home a Midianitish woman in the sight of the congregation.
At the zoo he had his first sight of an ape, and was profoundly impressed by how human the orangutan seemed.
At first sight, it will appear that the disturbance in the pool is totally random, but on a closer look, it will be seen that a repeating pattern occurs over one cycle of the vibrating frequency.
At the date of his death, Pertwee was regularly being seen at the tail end of an enigmatic UK TV commercial for mobile phone operator Vodafone: dressed somewhat in his flamboyant ' Doctor ' manner, his character walked wordlessly across an alleyway in sight of a Liverpool landmark, and entered a garage evidently containing some kind of ' time machine '.
At emission, the object was at distance d from the Sun, and moved at angular rate μ radian / s, that is, μ = v < sub > t </ sub > / d with v < sub > t </ sub > = velocity transverse to line of sight from the Sun.
At the electoral reforms regarding the right to vote of 1862, she supported the idea to give women the right to vote, which was talked about as the " horrific sight " of seeing " crinolines at the election boxes ", but Bremer gave the idea her support, and the same year, women of legal majority were granted suffrage in municipal elections in Sweden.
At that point, just as the rest of the transport crew is surprised at the sight of Alicia, Allenby suddenly draws his gun and shoots the robot in the face.
At Tourcoing, faced by Houchard's central column the Dutch abandoned the village after a stiff fight, but the French then dispersed to plunder, only to flee on the sight of two small bodies of enemy cavalry.
At first sight Russia would seem to be almost invulnerable to a sea power, and no first success, however crushing, could have humbled Nicholas I.
At first, redefine it on the image of g for it to be the inverse function of g. However, this might destroy injectivity, so correct this problem iteratively, by making the amount of points redefined smaller, up to a minimum possible, shifting the problem " to infinity " and therefore out of sight.
At dusk, from March to September, Austinites and tourists line the bridge and lake shore to watch the dramatic sight of the bats streaming out in their nightly quest for insects.
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