• In traditional logic, obversion is a "type of immediate inference in which from a given proposition another proposition is inferred whose subject is the...
    4 KB (583 words) - 21:43, 21 September 2023
  • Thumbnail for Obverse and reverse
    The obverse and reverse are the two flat faces of coins and some other two-sided objects, including paper money, flags, seals, medals, drawings, old master...
    17 KB (1,967 words) - 13:32, 24 November 2024
  • forms. Obversion changes the quality (that is the affirmativity or negativity) of the statement and the predicate term. For example, by obversion, a universal...
    22 KB (2,492 words) - 18:47, 17 August 2024
  • propositions through contraposition and obversion, a series of immediate inferences where the rule of obversion is first applied to the original categorical...
    41 KB (6,160 words) - 09:42, 2 November 2024
  • Obverse Books is a British publisher initially known for publishing books relating to the character Iris Wildthyme, and currently for the Black Archive...
    24 KB (758 words) - 11:05, 18 October 2024
  • contains a list of flags for which the reverse (back ) is different from the obverse (front ). It includes current as well as historic flags of both nations...
    31 KB (304 words) - 16:01, 24 November 2024
  • Thumbnail for United States one-dollar bill
    bill obverse design dates from 1928, while the reverse appeared in 1976). The reverse design of the present dollar debuted in 1935, and the obverse in 1963...
    41 KB (4,568 words) - 04:23, 19 November 2024
  • Thumbnail for United States one-hundred-dollar bill
    Inventor and U.S. Founding Father Benjamin Franklin has been featured on the obverse of the bill since 1914, which now also contains stylized images of the...
    31 KB (3,196 words) - 04:41, 15 November 2024
  • form) becomes "Some non-S are not non-P". Contraposition Converse (logic) Obversion Transposition (logic) Taylor, Courtney K. "What Are the Converse, Contrapositive...
    3 KB (487 words) - 00:56, 15 April 2024
  • Thumbnail for Augustus
    A denarius from 44 BC, showing Julius Caesar on the obverse and the goddess Venus on the reverse of the coin. Caption: CAESAR IMP. M. / L. AEMILIVS BVCA...
    145 KB (17,285 words) - 05:29, 22 November 2024
  • Thumbnail for United States ten-dollar bill
    States ten-dollar bill (US$10) is a denomination of U.S. currency. The obverse of the bill features the portrait of Alexander Hamilton, who served as...
    30 KB (2,843 words) - 04:39, 15 November 2024
  • Thumbnail for India
    A two mohur Company gold coin, issued in 1835, the obverse inscribed "William IIII, King"...
    303 KB (26,903 words) - 13:15, 24 November 2024
  • valued at 25 cents, representing one-quarter of a dollar. Adorning its obverse is the profile of George Washington, while its reverse design has undergone...
    25 KB (2,711 words) - 07:59, 18 November 2024
  • Thumbnail for Mary, Queen of Scots
    Gold coin (22 Shillings) of 1553: obverse, coat of arms of Scotland; reverse, royal monogram...
    91 KB (11,111 words) - 12:34, 15 November 2024
  • Thumbnail for Farthing (British coin)
    until 1937, when a wren was introduced. As with all British coins, the obverse bore the image of the reigning monarch. The farthing ceased to be legal...
    11 KB (1,119 words) - 23:17, 10 August 2024
  • Thumbnail for Italian lira
    in 1951 500 lire – obverse and reverse – printed in 1947 1,000 lire – obverse and reverse – printed in 1947 5,000 lire – obverse and reverse – printed...
    36 KB (3,435 words) - 10:17, 11 November 2024
  • Thumbnail for Dime (United States coin)
    (17.91 millimeters) in diameter and 0.053 in (1.35 mm) in thickness. The obverse of the current dime depicts the profile of President Franklin D. Roosevelt...
    28 KB (3,405 words) - 03:42, 8 September 2024
  • Thumbnail for United States dollar
    $20). The newer designs, with portraits displayed in the main body of the obverse (rather than in cameo insets), upon paper color-coded by denomination,...
    111 KB (10,362 words) - 04:24, 19 November 2024
  • Thumbnail for Trentemøller
    vocals by Marie Fisker, Lisbet Fritze and Jehnny Beth. A fifth album, Obverse, was released in 2019. It was nominated for IMPALA's European Independent...
    26 KB (1,943 words) - 12:41, 2 November 2024
  • Thumbnail for United States one-hundred-thousand-dollar bill
    the engraving for the portrait of Woodrow Wilson on the obverse of the note. On the obverse the following words appear: "This is to certify that there...
    7 KB (571 words) - 00:01, 22 October 2024
  • Thumbnail for United States fifty-dollar bill
    18th U.S. president (1869-1877), Ulysses S. Grant, is featured on the obverse, while the U.S. Capitol is featured on the reverse. All current-issue $50...
    16 KB (1,499 words) - 14:17, 15 November 2024
  • Thumbnail for United States Mint
    Mintmarks were moved to the obverse of the nickel, dime, quarter, and half dollar in 1968, and have appeared on the obverse of the dollar coin since its...
    34 KB (3,243 words) - 23:01, 19 November 2024
  • Thumbnail for Guinea (coin)
    monarch's head on the coin. The obverse and reverse of this coin were designed by John Roettiers (1631–c. 1700). The obverse showed a fine right-facing bust...
    24 KB (3,361 words) - 15:40, 1 November 2024
  • Thumbnail for Dagestan
    Silver coin of Nader Shah, minted in Dagestan, dated 1741–42 (left = obverse; right = reverse)...
    80 KB (5,811 words) - 16:02, 25 November 2024
  • Thumbnail for Marcus Aurelius
    Coin (AD 136–138) of Hadrian (obverse) and his adoptive son, Lucius Aelius (reverse). Hadrian is wearing the laurel crown. Inscription: HADRIANVS ......
    140 KB (17,100 words) - 07:28, 22 November 2024
  • Thumbnail for Spanish Empire
    Obverse side of a Spanish Peru 8 Reales coin, depicting the two hemispheres which hosted the Spanish Empire...
    151 KB (16,692 words) - 17:28, 12 November 2024
  • Thumbnail for Rudolf, Crown Prince of Austria
    Wedding medal 1881 by Tautenhayn, obverse...
    31 KB (2,846 words) - 12:31, 25 October 2024
  • Thumbnail for Saladin
    Saladin on a posthumous dirham of the Ayyubid Al-Ashraf Musa, with obverse legend: "The Victorious King, Righteousness of the World and the Faith, Yusuf...
    117 KB (15,375 words) - 22:50, 11 November 2024
  • Thumbnail for List of national flags of sovereign states
    2023 — Red field with a yellow sun in the center having 40 rays; on the obverse side the rays run counterclockwise, on the reverse, clockwise; in the center...
    213 KB (13,369 words) - 16:29, 25 November 2024
  • Thumbnail for Vikings
    Curmsun Disc – obverse, Jomsborg, 980s...
    203 KB (21,546 words) - 05:23, 22 November 2024