/usr/share/gap/pkg/openmath/cds/group1.ocd is in gap-openmath 11.2.0+ds-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 | <CD>
<CDName> group1 </CDName>
<CDURL> http://www.openmath.org/cd/group1.ocd </CDURL>
<CDReviewDate> 2009-04-18 </CDReviewDate>
<CDDate> 1999-05-10 </CDDate>
<CDVersion> 2 </CDVersion>
<CDRevision> 0 </CDRevision>
<CDStatus> experimental </CDStatus>
<CDUses>
<CDName>alg1</CDName>
<CDName>arith1</CDName>
<CDName>fns1</CDName>
<CDName>fns2</CDName>
<CDName>logic1</CDName>
<CDName>nums1</CDName>
<CDName>quant1</CDName>
<CDName>relation1</CDName>
<CDName>set1</CDName>
<CDName>setname1</CDName>
</CDUses>
<Description> A CD of functions for group theory </Description>
<CDComment>
Written by A. Solomon on 1998-11-19
Modified by David Carlisle 1998-04-28
Modified by Alexander Konovalov 2009-04-18 (replaced group1.group by group1.group_by_generators)
</CDComment>
<CDDefinition>
<Name> declare_group </Name>
<Description>
This symbol is a constructor for groups. It takes four arguments in
the following order; a set to specify the elements in the group, a
binary operation to specify the group operation, a unary operation to
specify inverses of group elements and an element to specify the
identity. Both the binary and unary operations should act on elements
of the set and return an element of the set.
</Description>
<Example>
This example represents the group which has as elements all positive
and negative even numbers, the group operation is binary addition,
inverses are the negative of the element and the identity is the zero
element.
<OMOBJ>
<OMA>
<OMS cd="group1" name="declare_group"/>
<OMA>
<OMS cd="set1" name="suchthat"/>
<OMS cd="nums1" name="Z"/>
<OMBIND>
<OMS cd="fns1" name="lambda"/>
<OMBVAR>
<OMV name="x"/>
</OMBVAR>
<OMA>
<OMS cd="set1" name="in"/>
<OMA>
<OMS cd="arith1" name="divide"/>
<OMV name="x"/>
<OMI> 2 </OMI>
</OMA>
<OMS cd="setname1" name="Z"/>
</OMA>
</OMBIND>
</OMA>
<OMS cd="arith1" name="plus"/>
<OMS cd="arith1" name="unary_minus"/>
<OMS cd="alg1" name="zero"/>
</OMA>
</OMOBJ>
</Example>
</CDDefinition>
<CDDefinition>
<Name> is_abelian </Name>
<Description>
The unary boolean function whose value is true iff the argument is an abelian group
</Description>
<CMP>
If is_abelian(G) then for all a,b in element_set(G) a*b = b*a
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="group1" name="is_abelian"/>
<OMV name="G"/>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="a"/>
<OMV name="b"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="a"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="b"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="a"/>
<OMV name="b"/>
</OMA>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="b"/>
<OMV name="a"/>
</OMA>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> group </Name>
<Description>
The n-ary function Group. The group generated by its arguments.
The arguments must have a natural group operation associated with them.
</Description>
<CMP>
A group is closed under its operation.
A groups operation is associative.
A group has an identity element.
Every element of a group has an inverse.
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="G"/>
<OMA>
<OMS cd="fns2" name="apply_to_list"/>
<OMS cd="group1" name="group_by_generators"/>
<OMV name="listofgens"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="a"/>
<OMV name="b"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="a"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="b"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="exists"/>
<OMBVAR>
<OMV name="c"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="c"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="c"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="a"/>
<OMV name="b"/>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="G"/>
<OMA>
<OMS cd="fns2" name="apply_to_list"/>
<OMS cd="group1" name="group_by_generators"/>
<OMV name="listofgens"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="g"/>
<OMV name="h"/>
<OMV name="k"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="g"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="h"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="k"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="g"/>
<OMV name="h"/>
</OMA>
<OMV name="k"/>
</OMA>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="g"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="h"/>
<OMV name="k"/>
</OMA>
</OMA>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="G"/>
<OMA>
<OMS cd="fns2" name="apply_to_list"/>
<OMS cd="group1" name="group_by_generators"/>
<OMV name="listofgens"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="exists"/>
<OMBVAR>
<OMV name="id"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="id"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="g"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="g"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="id"/>
<OMV name="g"/>
</OMA>
<OMV name="g"/>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="g"/>
<OMV name="id"/>
</OMA>
<OMV name="g"/>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="G"/>
<OMA>
<OMS cd="fns2" name="apply_to_list"/>
<OMS cd="group1" name="group_by_generators"/>
<OMV name="listofgens"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="g"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="g"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="exists"/>
<OMBVAR>
<OMV name="inv"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="inv"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="g"/>
<OMV name="inv"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="inv"/>
<OMV name="g"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> group_by_generators </Name>
<Description>
An n-ary function to construct a group generated by the list of its arguments.
</Description>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="group1" name="group_by_generators"/>
<OMA>
<OMS cd="linalg2" name="matrix"/>
<OMA>
<OMS cd="linalg2" name="matrixrow"/>
<OMI>1</OMI>
<OMI>1</OMI>
</OMA>
<OMA>
<OMS cd="linalg2" name="matrixrow"/>
<OMI>0</OMI>
<OMI>1</OMI>
</OMA>
</OMA>
<OMA>
<OMS cd="linalg2" name="matrix"/>
<OMA>
<OMS cd="linalg2" name="matrixrow"/>
<OMI>1</OMI>
<OMI>0</OMI>
</OMA>
<OMA>
<OMS cd="linalg2" name="matrixrow"/>
<OMI>1</OMI>
<OMI>1</OMI>
</OMA>
</OMA>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> element_set </Name>
<Description>
The unary function which returns the set of elements of a group.
</Description>
</CDDefinition>
<CDDefinition>
<Name> is_subgroup </Name>
<Description>
The binary function whose value is true if the second argument is a subgroup of the first.
</Description>
<CMP>
A is a subgroup of B implies element_set(A) is a subset of element_set(B)
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="group1" name="is_subgroup"/>
<OMV name="B"/>
<OMV name="A"/>
</OMA>
<OMA>
<OMS cd="set1" name="subset"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="A"/>
</OMA>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="B"/>
</OMA>
</OMA>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> right_transversal </Name>
<Description>
The binary function whose value is a set of representatives for the right cosets
of the second argument as a subgroup of the first.
</Description>
</CDDefinition>
<CDDefinition>
<Name> normal_closure </Name>
<Description>
The binary function whose value is the set of conjugates of
the elements of the second group by elements of the first,
where multiplication between them is defined.
</Description>
<CMP>
n in the normal closure (A,B) implies
there exists a in A and b in B s.t. n = b^(-1) a b
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="n"/>
<OMA>
<OMS cd="group1" name="normal_closure"/>
<OMV name="A"/>
<OMV name="B"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="exists"/>
<OMBVAR>
<OMV name="a"/>
<OMV name="b"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="a"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="A"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="b"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="B"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="n"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invb"/>
<OMV name="a"/>
<OMV name="b"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invb"/>
<OMV name="b"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> is_normal </Name>
<Description>
If G, H are the group arguments, then IsNormal(G,H) returns true precisely when
G is normal in H. That is, g^-1*h*g is defined and contained in H for
all h in H and g in G.
</Description>
<CMP>
is_normal(G,H) implies that for all g in G and h in H then
g^-1*h*g is in H
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="group1" name="is_normal"/>
<OMV name="G"/>
<OMV name="H"/>
</OMA>
<OMBIND>
<OMS cd="quant1" name="forall"/>
<OMBVAR>
<OMV name="g"/>
<OMV name="h"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="g"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="h"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="H"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invg"/>
<OMV name="h"/>
<OMV name="g"/>
</OMA>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="H"/>
</OMA>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invg"/>
<OMV name="g"/>
</OMA>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> quotient_group </Name>
<Description>
The binary function whose value is the factor group of the first argument by the
second, assuming the second is normal in the first.
</Description>
</CDDefinition>
<CDDefinition>
<Name> conjugacy_class </Name>
<Description>
The binary function whose value is the set of elements which
are conjugate to the second argument in the first.
</Description>
<CMP>
The conjugacy class in G with respect to h = {g^(-1) h g | g in G}
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="group1" name="conjugacy_class"/>
<OMV name="G"/>
<OMV name="h"/>
</OMA>
<OMA>
<OMS cd="set1" name="suchthat"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
<OMBIND>
<OMS cd="fns1" name="lambda"/>
<OMBVAR>
<OMV name="conj"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="conj"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invg"/>
<OMV name="h"/>
<OMV name="g"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMV name="invg"/>
<OMV name="g"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="conj"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="g"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> derived_subgroup </Name>
<Description>
The unary function whose value is the subgroup of argument
generated by all products of the form xyx^-1y^-1.
</Description>
<CMP>
d in the derived subgroup of G implies
there exist x,y in G such that d=x y x^(-1) y^(-1)
</CMP>
<FMP>
<OMOBJ>
<OMA>
<OMS cd="logic1" name="implies"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="d"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMBIND>
<OMS cd="quant1" name="exists"/>
<OMBVAR>
<OMV name="x"/>
<OMV name="y"/>
</OMBVAR>
<OMA>
<OMS cd="logic1" name="and"/>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="x"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="set1" name="in"/>
<OMV name="y"/>
<OMA>
<OMS cd="group1" name="element_set"/>
<OMV name="G"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMV name="d"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="x"/>
<OMV name="y"/>
<OMV name="invx"/>
<OMV name="invy"/>
</OMA>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invx"/>
<OMV name="x"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
<OMA>
<OMS cd="relation1" name="eq"/>
<OMA>
<OMS cd="arith1" name="times"/>
<OMV name="invy"/>
<OMV name="y"/>
</OMA>
<OMS cd="alg1" name="one"/>
</OMA>
</OMA>
</OMBIND>
</OMA>
</OMOBJ>
</FMP>
</CDDefinition>
<CDDefinition>
<Name> sylow_subgroup </Name>
<Description>
The largest p-subgroup of the argument (up to conjugacy).
</Description>
</CDDefinition>
<CDDefinition>
<Name> character_table_of_group </Name>
<Description>
Refers to the character table of its argument
which must be a group.
An actual character table is just a list of lists
as described below, annotated with
the reference describing what it's a character table of:
e.g CharacterTable(G)
</Description>
</CDDefinition>
<CDDefinition>
<Name> character_table</Name>
<Description>
This is the constructor for a character table.
Usage:
CharacterTable(class_names, centralizer_sizes, centralizer_primes,
centralizer_indices, power_map, class_sizes, orders_class_reps,
irreducibles_matrix, irreducible_values)
If G has n conjugacy classes then:
* classnames is a list of n strings which name the conjugacy classes
in line with the convention used in the Atlas of Finite Groups
The first class is always the class of the identity.
* centralizer_sizes[k] is the size of the centralizer
of the kth conjugacy class.
* centralizer_primes[k] is a list of primes of the form
[p1, .., pk] i < j implies that pi < pj and
the pi are precisely the primes which divide the
centralizer_sizes[k].
* centralizer_indices is of the form
[[i11, ...,i1k] ... [in1,...ink]]
so the centralizer of class 1 has order p1^i11 ... pk^i1k etc
* class_sizes - sizes of the conjugacy classes
* orders_class_reps - every element in a conjugacy class has the same order
* power_map is of the form [list1, ..., listk]
where listi[j] is the name of the class where elements of class j go when
raised to the power pi.
* irreducibles_matrix: rows correspond to irreducible characters,
columns are conjugacy classes. Entries are the value of an element of the
column's conjugacy class under the character of the row. These
values may be expressions involving variables.
* irreducibles_values: a list of pairs of the form (var = val) where
val is an irrational cyclotomic and var appears in expressions for
values in the irreducibles_matrix.
</Description>
</CDDefinition>
</CD>
|