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Mirrors > Home > MPE Home > Th. List > cbvral | Structured version Visualization version GIF version |
Description: Rule used to change bound variables, using implicit substitution. (Contributed by NM, 31-Jul-2003.) |
Ref | Expression |
---|---|
cbvral.1 | ⊢ Ⅎ𝑦𝜑 |
cbvral.2 | ⊢ Ⅎ𝑥𝜓 |
cbvral.3 | ⊢ (𝑥 = 𝑦 → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
cbvral | ⊢ (∀𝑥 ∈ 𝐴 𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2751 | . 2 ⊢ Ⅎ𝑥𝐴 | |
2 | nfcv 2751 | . 2 ⊢ Ⅎ𝑦𝐴 | |
3 | cbvral.1 | . 2 ⊢ Ⅎ𝑦𝜑 | |
4 | cbvral.2 | . 2 ⊢ Ⅎ𝑥𝜓 | |
5 | cbvral.3 | . 2 ⊢ (𝑥 = 𝑦 → (𝜑 ↔ 𝜓)) | |
6 | 1, 2, 3, 4, 5 | cbvralf 3141 | 1 ⊢ (∀𝑥 ∈ 𝐴 𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 Ⅎwnf 1699 ∀wral 2896 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 |
This theorem is referenced by: cbvralv 3147 cbvralsv 3158 cbviin 4494 disjxun 4581 ralxpf 5190 eqfnfv2f 6223 ralrnmpt 6276 dff13f 6417 ofrfval2 6813 fmpt2x 7125 ovmptss 7145 cbvixp 7811 mptelixpg 7831 boxcutc 7837 xpf1o 8007 indexfi 8157 ixpiunwdom 8379 dfac8clem 8738 acni2 8752 ac6num 9184 ac6c4 9186 iundom2g 9241 uniimadomf 9246 rabssnn0fi 12647 rlim2 14075 ello1mpt 14100 o1compt 14166 fsum00 14371 iserodd 15378 pcmptdvds 15436 catpropd 16192 invfuc 16457 gsummptnn0fz 18205 gsummoncoe1 19495 gsumply1eq 19496 fiuncmp 21017 elptr2 21187 ptcld 21226 ptclsg 21228 ptcnplem 21234 cnmpt11 21276 cnmpt21 21284 ovoliunlem3 23079 ovoliun 23080 ovoliun2 23081 finiunmbl 23119 volfiniun 23122 iunmbl 23128 voliun 23129 mbfeqalem 23215 mbfsup 23237 mbfinf 23238 mbflim 23241 itg2split 23322 itgeqa 23386 itgfsum 23399 itgabs 23407 itggt0 23414 limciun 23464 dvlipcn 23561 dvfsumlem4 23596 dvfsum2 23601 itgsubst 23616 coeeq2 23802 ulmss 23955 leibpi 24469 rlimcnp 24492 o1cxp 24501 lgamgulmlem6 24560 fsumdvdscom 24711 lgseisenlem2 24901 disjunsn 28789 bnj110 30182 bnj1529 30392 poimirlem23 32602 itgabsnc 32649 itggt0cn 32652 totbndbnd 32758 disjinfi 38375 climinff 38678 idlimc 38693 fnlimabslt 38746 cncfshift 38759 stoweidlem31 38924 iundjiun 39353 pimgtmnf2 39601 cbvral2 39821 |
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