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| Description: Weak deduction theorem eliminating two hypotheses. This theorem is simpler to use than dedth2v 3018 but requires that each hypothesis has exactly one class variable. See also comments in dedth 3011. |
| Ref | Expression |
|---|---|
| dedth2h.1 |
|
| dedth2h.2 |
|
| dedth2h.3 |
|
| Ref | Expression |
|---|---|
| dedth2h |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dedth2h.1 |
. . . 4
| |
| 2 | 1 | imbi2d 674 |
. . 3
|
| 3 | dedth2h.2 |
. . . 4
| |
| 4 | dedth2h.3 |
. . . 4
| |
| 5 | 3, 4 | dedth 3011 |
. . 3
|
| 6 | 2, 5 | dedth 3011 |
. 2
|
| 7 | 6 | imp 377 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: dedth3h 3016 dedth4h 3017 dedth2v 3018 oawordeu 5237 oeoa 5272 unfilem3 5643 subcl 6524 negsub 6540 neg11 6569 mulneg1 6615 mul2negOLD 6619 negdi 6620 addgt0OLD 6832 addgegt0OLD 6834 addge0OLD 6838 ltneg 6844 leneg 6846 lesub0 6867 mulge0 6868 mulge0OLD 6869 mul0or 6884 divcl 6901 divcan1 6909 divrec 6922 divcan3 6938 rec11i 6954 redivcl 6978 prodgt0 7004 prodge0 7006 ltreci 7062 ltrec 7067 lerec 7068 lt2msq 7069 le2msq 7086 nnsub 7141 nn0mulcl 7332 snunioo 7584 sq11 7874 sqeqor 7895 binom2 7896 sqrmuli 7955 sqrle 7963 sqr2irrlem2 7975 sqr2irrlem5 7978 readd 8055 imadd 8058 cjadd 8062 cjmul 8063 absmul 8109 absdiv 8111 abslt 8132 absle 8133 cjdiv 8141 abssub 8146 abstri 8150 bcpasc 8222 expcnvlem5 8492 efadd 8629 ef1tlubi 8644 ef01tlubi 8648 absef01tlubi 8650 eirr 8656 reef11 8674 reefiso 8693 sinadd 8718 cosadd 8719 nmlno0 9795 ipassi 9842 sii 9855 ajfun 9862 cosh111 10071 efif1lem6 10089 hvnegdi 10566 hvsubeq0 10567 normlem9at 10620 normsub0 10636 norm-ii 10638 norm-iii 10640 normsub 10643 normpyth 10645 norm3adifi 10653 normpar 10655 polid 10659 bcs 10681 occllem2 10807 occllem8 10813 pjth 10867 axpjpj 10889 pjoc1 10900 pjoml 10902 pjoc2 10905 shscl 10915 shslej 10983 shincl 10984 chincl 11055 chsscon3 11056 chlejb1 11068 chnle 11070 chdmm1 11081 spanun 11101 elspansn2 11123 h1datom 11138 cmbr3 11184 pjoml2 11187 pjoml3 11188 cmcm 11190 cmcm3 11191 lecm 11193 osum 11223 spansnj 11227 pjadji 11265 pjaddi 11266 pjsubi 11268 pjmuli 11269 pjch 11274 pj11 11294 pjnorm 11304 pjpyth 11305 pjnel 11306 hosubcl 11336 hoaddcom 11337 ho0sub 11360 honegsub 11362 eigre 11398 lnopeq0lem2 11568 lnopeq 11571 lnopunii 11574 lnophmi 11580 cvmd 11908 chrelat2 11942 cvexch 11946 mdsym 11984 fz1eqb 13609 abs2sqle 13624 abs2sqlt 13625 divalglem7 13702 divalg 13706 infxpg 14422 subsp2 14902 erthdmg 15730 add20 15777 eluzadd 15782 eluzsub 15783 txcnoprab 15911 bfp 16009 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-10 1308 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-if 2983 |