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| Mirrors > Home > MPE Home > Th. List > sbcbii | Structured version Visualization version GIF version | ||
| Description: Formula-building inference for class substitution. (Contributed by NM, 11-Nov-2005.) |
| Ref | Expression |
|---|---|
| sbcbii.1 | ⊢ (𝜑 ↔ 𝜓) |
| Ref | Expression |
|---|---|
| sbcbii | ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbcbii.1 | . . . 4 ⊢ (𝜑 ↔ 𝜓) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → (𝜑 ↔ 𝜓)) |
| 3 | 2 | sbcbidv 3793 | . 2 ⊢ (⊤ → ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓)) |
| 4 | 3 | mptru 1576 | 1 ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ⊤wtru 1570 [wsbc 3738 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-sbc 3739 |
| This theorem is used by: eqsbc2 3801 sbc3an 3802 sbccom 3817 sbcrext 3819 sbcabel 3824 csbcow 3861 csbco 3862 sbcnel12g 4371 sbcne12 4372 csbcom 4377 csbnestgfw 4379 csbnestgf 4384 sbccsb 4393 sbccsb2 4394 csbab 4397 2nreu 4401 sbcssg 4476 sbcop 5458 sbcrel 5756 sbcfung 6564 sbcfungOLD 6565 tfinds2 7876 f1od2 8111 frpoins3xpg 8160 frpoins3xp3g 8161 mpoxopovel 8241 bnj62 35398 bnj89 35399 bnj156 35406 bnj524 35415 bnj610 35425 bnj919 35445 bnj976 35455 bnj110 35535 bnj91 35538 bnj92 35539 bnj106 35545 bnj121 35547 bnj124 35548 bnj125 35549 bnj126 35550 bnj130 35551 bnj154 35555 bnj155 35556 bnj153 35557 bnj207 35558 bnj523 35564 bnj526 35565 bnj539 35568 bnj540 35569 bnj581 35585 bnj591 35588 bnj609 35594 bnj611 35595 bnj934 35612 bnj1000 35618 bnj984 35629 bnj985v 35630 bnj985 35631 bnj1040 35649 bnj1123 35663 bnj1452 35729 bnj1463 35732 sbcalf 39140 sbcexf 39141 sbccom2lem 39150 sbccom2 39151 sbccom2f 39152 sbccom2fi 39153 csbcom2fi 39154 rspcsbnea 43275 2sbcrex 43889 sbcrot3 43892 sbcrot5 43893 2rexfrabdioph 43897 3rexfrabdioph 43898 4rexfrabdioph 43899 6rexfrabdioph 43900 7rexfrabdioph 43901 rmydioph 44115 expdiophlem2 44123 sbcheg 44873 sbc3or 45609 trsbc 45617 onfrALTlem5 45619 eqsbc2VD 45916 sbcoreleleqVD 45935 onfrALTlem5VD 45961 ich2exprop 48647 |
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