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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 31296 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4562 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2149 ifcif 4492 ℋchba 31212 0ℎc0v 31217 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 ax-hv0cl 31296 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-if 4493 |
| This theorem is referenced by: hvsubsub4 31353 hvnegdi 31360 hvsubeq0 31361 hvaddcan 31363 hvsubadd 31370 normlem9at 31414 normsq 31427 normsub0 31429 norm-ii 31431 norm-iii 31433 normsub 31436 normpyth 31438 norm3dif 31443 norm3lemt 31445 norm3adifi 31446 normpar 31448 polid 31452 bcs 31474 pjoc1 31727 pjoc2 31732 h1de2ci 31849 spansn 31852 elspansn 31859 elspansn2 31860 h1datom 31875 spansnj 31940 spansncv 31946 pjch1 31963 pjadji 31978 pjaddi 31979 pjinormi 31980 pjsubi 31981 pjmuli 31982 pjcjt2 31985 pjch 31987 pjopyth 32013 pjnorm 32017 pjpyth 32018 pjnel 32019 eigre 32128 eigorth 32131 lnopeq0lem2 32299 lnopunii 32305 lnophmi 32311 pjss2coi 32457 pjssmi 32458 pjssge0i 32459 pjdifnormi 32460 |
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