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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 31635 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4555 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 ifcif 4485 ℋchba 31551 0ℎc0v 31556 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-hv0cl 31635 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-if 4486 |
| This theorem is used by: hvsubsub4 31692 hvnegdi 31699 hvsubeq0 31700 hvaddcan 31702 hvsubadd 31709 normlem9at 31753 normsq 31766 normsub0 31768 norm-ii 31770 norm-iii 31772 normsub 31775 normpyth 31777 norm3dif 31782 norm3lemt 31784 norm3adifi 31785 normpar 31787 polid 31791 bcs 31813 pjoc1 32066 pjoc2 32071 h1de2ci 32188 spansn 32191 elspansn 32198 elspansn2 32199 h1datom 32214 spansnj 32279 spansncv 32285 pjch1 32302 pjadji 32317 pjaddi 32318 pjinormi 32319 pjsubi 32320 pjmuli 32321 pjcjt2 32324 pjch 32326 pjopyth 32352 pjnorm 32356 pjpyth 32357 pjnel 32358 eigre 32467 eigorth 32470 lnopeq0lem2 32638 lnopunii 32644 lnophmi 32650 pjss2coi 32796 pjssmi 32797 pjssge0i 32798 pjdifnormi 32799 |
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