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| Mirrors > Home > HSE Home > Th. List > ifhvhv0 | Structured version Visualization version GIF version | ||
| Description: Prove if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ. (Contributed by David A. Wheeler, 7-Dec-2018.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ifhvhv0 | ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hv0cl 31264 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4553 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2145 ifcif 4483 ℋchba 31180 0ℎc0v 31185 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 ax-hv0cl 31264 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-if 4484 |
| This theorem is referenced by: hvsubsub4 31321 hvnegdi 31328 hvsubeq0 31329 hvaddcan 31331 hvsubadd 31338 normlem9at 31382 normsq 31395 normsub0 31397 norm-ii 31399 norm-iii 31401 normsub 31404 normpyth 31406 norm3dif 31411 norm3lemt 31413 norm3adifi 31414 normpar 31416 polid 31420 bcs 31442 pjoc1 31695 pjoc2 31700 h1de2ci 31817 spansn 31820 elspansn 31827 elspansn2 31828 h1datom 31843 spansnj 31908 spansncv 31914 pjch1 31931 pjadji 31946 pjaddi 31947 pjinormi 31948 pjsubi 31949 pjmuli 31950 pjcjt2 31953 pjch 31955 pjopyth 31981 pjnorm 31985 pjpyth 31986 pjnel 31987 eigre 32096 eigorth 32099 lnopeq0lem2 32267 lnopunii 32273 lnophmi 32279 pjss2coi 32425 pjssmi 32426 pjssge0i 32427 pjdifnormi 32428 |
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