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| Mirrors > Home > ILE Home > Th. List > negeqd | Unicode version | ||
| Description: Equality deduction for negatives. (Contributed by NM, 14-May-1999.) |
| Ref | Expression |
|---|---|
| negeqd.1 |
|
| Ref | Expression |
|---|---|
| negeqd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | negeqd.1 |
. 2
| |
| 2 | negeq 8521 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-neg 8502 |
| This theorem is used by: negdi 8585 mulneg2 8725 mulm1 8729 eqord2 8814 mulreim 8935 apneg 8942 divnegap 9039 div2negap 9068 recgt0 9183 infrenegsupex 10004 supminfex 10007 mul2lt0rlt0 10171 ceilqval 10758 ceilid 10767 modqcyc2 10812 monoord2 10938 reneg 11649 imneg 11657 cjcj 11664 cjneg 11671 minmax 12014 minabs 12020 telfsumo2 12253 sinneg 12512 tannegap 12514 sincossq 12534 odd2np1 12659 oexpneg 12663 modgcd 12787 pcneg 13127 mulgval 13978 mulgneg 13996 ivthdec 15836 limcimolemlt 15856 dvrecap 15905 sinperlem 16001 efimpi 16012 ptolemy 16017 birthdaylem3 16188 lgsneg1 16310 lgseisenlem1 16355 lgseisenlem4 16358 m1lgs 16370 ex-ceil 16906 |
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